Information Disclosure
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
How It Works
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security. This happens through multiple channels: verbose error messages that display stack traces revealing internal paths and frameworks, improperly secured debug endpoints left active in production, and misconfigured servers that expose directory listings or version control artifacts like .git folders. APIs often leak excessive data in responses—returning full user objects when only a name is needed, or revealing system internals through metadata fields.
Attackers exploit these exposures systematically. They probe for common sensitive files (.env, config.php, backup archives), trigger error conditions to extract framework details, and analyze response timing or content differences to enumerate valid usernames or resources. Even subtle variations—like "invalid password" versus "user not found"—enable account enumeration. Exposed configuration files frequently contain database credentials, API keys, or internal service URLs that unlock further attack vectors.
The attack flow typically starts with passive reconnaissance: examining HTTP headers, JavaScript bundles, and public endpoints for version information and architecture clues. Active probing follows—testing predictable paths, manipulating parameters to trigger exceptions, and comparing responses across similar requests to identify information leakage patterns.
Impact
- Credential compromise: Exposed configuration files, hardcoded secrets in source code, or API keys enable direct authentication bypass
- Attack surface mapping: Stack traces, framework versions, and internal paths help attackers craft targeted exploits for known vulnerabilities
- Data breach: Direct exposure of user data, payment information, or proprietary business logic through oversharing APIs or accessible backups
- Privilege escalation pathway: Internal URLs, service discovery information, and architecture details facilitate lateral movement and SSRF attacks
- Compliance violations: GDPR, PCI-DSS, and HIPAA penalties for exposing regulated data through preventable disclosures
Real-World Examples
A major Git repository exposure affected thousands of websites when .git folders remained accessible on production servers, allowing attackers to reconstruct entire source code histories including deleted commits containing credentials. Tools like GitDumper automated mass exploitation of this misconfiguration.
Cloud storage misconfigurations have repeatedly exposed sensitive data when companies left S3 buckets or Azure Blob containers publicly readable. One incident exposed 150 million voter records because verbose API error messages revealed the storage URL structure, and no authentication was required.
Framework debug modes left enabled in production have caused numerous breaches. Django's DEBUG=True setting exposed complete stack traces with database queries and environment variables, while Laravel's debug pages revealed encryption keys through the APP_KEY variable in environment dumps.
Mitigation
- Generic error pages: Return uniform error messages to users; log detailed exceptions server-side only
- Disable debug modes: Enforce production configurations that suppress stack traces, verbose logging, and debug endpoints through deployment automation
- Access control audits: Restrict or remove development artifacts (
.git, backup files,phpinfo()) and internal endpoints before deployment - Response minimization: API responses should return only necessary fields; implement allowlists rather than blocklists for data exposure
- Security headers: Deploy
X-Content-Type-Options, remove server version banners, and disable directory indexing - Timing consistency: Ensure authentication and validation responses take uniform time regardless of input validity
Recent CVEs (69319)
In nci_proc_rf_management_ntf of nci_hrcv.cc, there is a possible out of bounds read due to a missing bounds check. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In phNciNfc_RecvMfResp of phNxpExtns_MifareStd.cpp, there is a possible out of bounds read due to a missing bounds check. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
EdgeX Foundry is an open source project for building a common open framework for Internet of Things edge computing. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Discourse is an open-source discussion platform. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
TYPO3 is an open source web content management system. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity.
TYPO3 is an open source web content management system. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.
TYPO3 is an open source web content management system. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Jupyter Server provides the backend (i.e. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
SAP PowerDesigner Proxy - version 16.7, allows an attacker with low privileges and has local access, with the ability to work around system’s root disk access restrictions to Write/Create a program. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in Couchbase Server before 6.6.5 and 7.x before 7.0.4. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability in /cgi-bin/ExportAllSettings.sh of WAVLINK WN579 X3 M79X3.V5030.180719 allows attackers to obtain sensitive router information via a crafted POST request. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability in live_mfg.shtml of WAVLINK WN535 G3 M35G3R.V5030.180927 allows attackers to obtain sensitive router information via execution of the exec cmd function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability in live_check.shtml of WAVLINK WN535 G3 M35G3R.V5030.180927 allows attackers to obtain sensitive router information via execution of the exec cmd function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability in live_check.shtml of WAVLINK AERIAL X 1200M M79X3.V5030.180719 allows attackers to obtain sensitive router information via execution of the exec cmd function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability in live_mfg.shtml of WAVLINK AERIAL X 1200M M79X3.V5030.191012 allows attackers to obtain sensitive router information via execution of the exec cmd function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue in TopIDP3000 Topsec Operating System tos_3.3.005.665b.15_smpidp allows attackers to perform a brute-force attack via a crafted session_id cookie. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.
A vulnerability has been identified in SICAM GridEdge (Classic) (All versions < V2.6.6). Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, low attack complexity.
A vulnerability has been identified in SICAM GridEdge (Classic) (All versions < V2.6.6). Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0 SP2). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0 SP2). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Denial of service due to memory corruption while extracting ape header from clips in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
kernel event may contain unexpected content which is not generated by NPU software in asynchronous execution mode in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
Out of bound read in WLAN HOST due to improper length check can lead to DOS in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Possible buffer over read due to lack of size validation while unpacking frame in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
In Connx Version 6.2.0.1269 (20210623), a cookie can be issued by the application and not have the secure flag set. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In Connx Version 6.2.0.1269 (20210623), a cookie can be issued by the application and not have the HttpOnly flag set. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Out-of-bounds read vulnerability exist in the simulator module contained in the graphic editor 'V-SFT' v6.1.3.0 and earlier, which may allow an attacker to obtain information and/or execute arbitrary. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
'Mobaoku-Auction&Flea Market' App for iOS versions prior to 5.5.16 improperly verifies server certificates, which may allow an attacker to eavesdrop on an encrypted communication via a. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Incomplete filtering of special elements vulnerability exists in RevoWorks SCVX using 'File Sanitization Library' 1.043 and prior versions, RevoWorks Browser 2.2.67 and prior versions (when using. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in Couchbase Server before 7.0.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Couchbase Server 5.x through 7.x before 7.0.4 exposes Sensitive Information to an Unauthorized Actor. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Electron is a framework for writing cross-platform desktop applications using JavaScript (JS), HTML, and CSS. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An issue was discovered in Couchbase Server before 7.0.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in Couchbase Server before 7.0.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Couchbase Server 6.6.x through 7.x before 7.0.4 exposes Sensitive Information to an Unauthorized Actor. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Electron is a framework for writing cross-platform desktop applications using JavaScript (JS), HTML, and CSS. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Biscuit is an authentication and authorization token for microservices architectures. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Power Distribution Units running on Powertek firmware (multiple brands) before 3.30.30 have an insecure permissions setting on the user.token field that is accessible to everyone through the. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Attacker crafts a GET request to: /mobile/downloadfile.aspx? Filename =../.. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Configuration defects in the secure OS module. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dialog boxes can still be displayed even if the screen is locked in carrier-customized USSD services. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The setting module has a vulnerability of improper use of APIs. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Logical defects in code implementation in some products. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The voice wakeup module has a vulnerability of using externally-controlled format strings. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
AppLink has a vulnerability of accessing uninitialized pointers. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
The kernel module has the race condition vulnerability. Rated medium severity (CVSS 4.7). No vendor patch available.
The fingerprint sensor module has design defects. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
The communication module has a vulnerability of improper permission preservation. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
The kernel emcom module has multi-thread contention. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
npm pack ignores root-level .gitignore and .npmignore file exclusion directives when run in a workspace or with a workspace flag (ie. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
The HC Custom WP-Admin URL WordPress plugin through 1.4 leaks the secret login URL when sending a specific crafted request. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
The Log WP_Mail WordPress plugin through 0.1 saves sent email in a publicly accessible directory using predictable filenames, allowing any unauthenticated visitor to obtain potentially sensitive. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Insufficient Session Expiration in GitHub repository nocodb/nocodb prior to 0.91.7+. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
Generation of Error Message Containing Sensitive Information in GitHub repository nocodb/nocodb prior to 0.91.7+. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Attacker is able to determine if the provided username exists (and it's valid) using Request New Password feature, based on the response time. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A reply to a forwarded email article by a 3rd party could unintensionally expose the email content to the ticket customer under certain circumstances. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
When Secure::DisableBanner system configuration has been disabled and agent shares his calendar via public URL, received ICS file contains OTRS release number. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper access control vulnerability in Rakuten Casa version AP_F_V1_4_1 or AP_F_V2_0_0 allows a remote attacker to log in with the root privilege and perform an arbitrary operation if the product. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper access control vulnerability in Rakuten Casa version AP_F_V1_4_1 or AP_F_V2_0_0 allows a remote attacker to obtain the information stored in the product because the product is set to accept. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In Octopus Server after version 2022.1.1495 and before 2022.1.2647 if private spaces were enabled via the experimental feature flag all new users would have access to the Script Console within their. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Bento4 MP4Dump v1.2 was discovered to contain a segmentation violation via an unknown address at /Source/C++/Core/Ap4DataBuffer.cpp:175. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
IBM Spectrum Copy Data Management 2.2.0.0 through 2.2.15.0 could allow a remote attacker to view product configuration information stored in PostgreSQL, which could be used in further attacks against. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Guzzle is an open source PHP HTTP client. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Guzzle is an open source PHP HTTP client. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Istio is an open platform to connect, manage, and secure microservices. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Trend Micro Security 2022 and 2021 (Consumer) is vulnerable to an Out-Of-Bounds Read Information Disclosure vulnerability that could allow an attacker to disclose sensitive information on an affected. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
semantic-release is an open source npm package for automated version management and package publishing. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
The Mechanize library is used for automating interaction with websites. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Envoy is a cloud-native high-performance proxy. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input to mod_sed may be very large, mod_sed may make excessively large memory allocations and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Excessive Attack Surface in GitHub repository tooljet/tooljet prior to v1.16.0. Rated high severity (CVSS 8.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
Improper Neutralization of Formula Elements in a CSV File in GitHub repository kromitgmbh/titra prior to 0.77.0. Rated high severity (CVSS 8.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Apache HTTP Server 2.4.53 and earlier on Windows may read beyond bounds when configured to process requests with the mod_isapi module. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen maintains a. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. Public exploit code available.
x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen maintains a. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity.
x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition to a regular reference count. Rated medium severity (CVSS 6.4).
An improper control of interaction frequency vulnerability in Zyxel GS1200 series switches could allow a local attacker to guess the password by using a timing side-channel attack. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity.
ZTE's MF297D product has cryptographic issues vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Trilogy is a client library for MySQL. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.
Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.