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 (68894)
Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Dell ELab-Navigator, version 3.1.9 contains a hard-coded credential vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Inadequate encryption strength vulnerability in multiple routers provided by ELECOM CO.,LTD. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Certain WithSecure products have a buffer over-read whereby processing certain fuzz file types may cause a denial of service (DoS). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Elementor Addon Elements plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 1.12.7 via the ajax_eae_post_data function. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.
An information disclosure vulnerability exists in multiple ManageEngine products that can result in encryption keys being exposed. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Fides is an open-source privacy engineering platform for managing the fulfillment of data privacy requests in a runtime environment, and the enforcement of privacy regulations in code. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
The Pimcore Admin Classic Bundle provides a Backend UI for Pimcore. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
GPAC v2.3-DEV-rev566-g50c2ab06f-master was discovered to contain a double free via the gf_filterpacket_del function at /gpac/src/filter_core/filter.c. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
GPAC v2.3-DEV-rev566-g50c2ab06f-master was discovered to contain a heap-use-after-free via the flush_ref_samples function at /gpac/src/isomedia/movie_fragments.c. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
xxl-job-admin 2.4.0 is vulnerable to Insecure Permissions via /xxl-job-admin/joblog/clearLog and /xxl-job-admin/joblog/logDetailCat. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in Quarkus, where it does not properly sanitize artifacts created using the Gradle plugin, allowing certain build system information to remain. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In Eclipse OpenJ9 before version 0.41.0, the JVM can be forced into an infinite busy hang on a spinlock or a segmentation fault if a shutdown signal (SIGTERM, SIGINT or SIGHUP) is received before the. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.
An issue was identified by Elastic whereby sensitive information is recorded in Logstash logs under specific circumstances. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read vulnerability exists in V-Server V4.0.18.0 and earlier and V-Server Lite V4.0.18.0 and earlier. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Multiple out-of-bounds read vulnerabilities exist in TELLUS Simulator V4.0.17.0 and earlier. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Out-of-bounds read vulnerability exists in TELLUS V4.0.17.0 and earlier and TELLUS Lite V4.0.17.0 and earlier. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A CWE-494 Download of Code Without Integrity Check vulnerability exists that could allow modified firmware to be uploaded when an authorized admin user begins a firmware update procedure which could. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An improper access control vulnerability exists in RT-AC87U all versions. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
yt-dlp is a youtube-dl fork with additional features and fixes. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. This HTTP Request/Response Smuggling vulnerability could allow attackers to manipulate HTTP request interpretation between frontend and backend servers.
Insufficient control flow management in some Zoom clients may allow an authenticated user to conduct an information disclosure via network access. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A security vulnerability in EPMM Versions 11.10, 11.9 and 11.8 older allows a threat actor with knowledge of an enrolled device identifier to access and extract sensitive information, including. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability has been identified in the Ivanti Secure Access Windows client, which could allow a locally authenticated attacker to exploit a vulnerable configuration, potentially leading to. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An authenticated Denial-of-Service (DoS) vulnerability exists in the CLI service. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An unauthenticated Denial-of-Service (DoS) vulnerability exists in the soft ap daemon accessed via the PAPI protocol. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Unauthenticated Denial-of-Service (DoS) vulnerabilities exist in the Wi-Fi Uplink service accessed via the PAPI protocol. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Unauthenticated Denial-of-Service (DoS) vulnerabilities exist in the CLI service accessed via the PAPI protocol. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
There is an arbitrary file deletion vulnerability in the RSSI service accessed by PAPI (Aruba's access point management protocol). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
There are arbitrary file deletion vulnerabilities in the AirWave client service accessed by PAPI (Aruba's access point management protocol). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
There are arbitrary file deletion vulnerabilities in the CLI service accessed by PAPI (Aruba's access point management protocol). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Uncontrolled resource consumption in Zoom Team Chat for Zoom Desktop Client for Windows and Zoom VDI Client may allow an unauthenticated user to conduct a disclosure of information via network access. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Cryptographic issues with In-Meeting Chat for some Zoom clients may allow a privileged user to conduct an information disclosure via network access. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
vantage6 is a framework to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Hyperledger Fabric is an open source permissioned distributed ledger framework. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
.NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
TYPO3 is an open source PHP based web content management system released under the GNU GPL. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity.
TYPO3 is an open source PHP based web content management system released under the GNU GPL. 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.
Non-Transparent Sharing of Microarchitectural Resources in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable information disclosure via local access. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity.
Improper buffer restrictions in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable information disclosure via local access. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Improper access control in the Intel Support android application all verions may allow an authenticated user to potentially enable information disclosure via local access. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Improper Input Validation in the Networking Stack of QNX SDP version(s) 6.6, 7.0, and 7.1 could allow an attacker to potentially cause Information Disclosure or a Denial-of-Service condition. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
Insertion of sensitive information into log file in some Intel(R) On Demand software before versions 1.16.2, 2.1.1, 3.1.0 may allow an authenticated user to potentially enable information disclosure. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Improper access control in user mode driver for some Intel(R) Connectivity Performance Suite before version 2.1123.214.2 may allow unauthenticated user to potentially enable information disclosure. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Exposure of sensitive information to an unauthorized actor in some Intel(R) Aptio* V UEFI Firmware Integrator Tools may allow an authenticated user to potentially enable information disclosure via. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read in the Intel(R) Arc(TM) & Iris(R) Xe Graphics - WHQL - Windows drivers before version 31.0.101.4255 may allow an authenticated user to potentially enable information disclosure via. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read in the firmware for some Intel(R) E810 Ethernet Controllers and Adapters before version 1.7.1 may allow an unauthenticated user to potentially enable denial of service via adjacent. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Improper access control in firmware for some Intel(R) Optane(TM) SSD products may allow an unauthenticated user to potentially enable information disclosure via physical access. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Out-of-bounds read in the BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via adjacent access. Rated high severity (CVSS 8.0), this vulnerability is low attack complexity. No vendor patch available.
A permissive cross-domain policy with untrusted domains vulnerability in Fortinet FortiADC 7.1.0 - 7.1.1, FortiDDoS-F 6.3.0 - 6.3.4 and 6.4.0 - 6.4.1 allow an unauthorized attacker to carry out. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Protection mechanism failure in some Intel(R) Distribution of OpenVINO toolkit software before version 2023.0.0 may allow an authenticated user to potentially enable information disclosure via local. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Exposure of sensitive information to an unauthorized actor in firmware for some Intel(R) Optane(TM) SSD products may allow an unauthenticated user to potentially enable information disclosure via. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege and/or information. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds write in firmware for some Intel(R) FPGA products before version 2.8.1 may allow a privileged user to potentially enable information disclosure via local access. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity.
Improper buffer restrictions in some Intel(R) QAT Library software before version 22.07.1 may allow a privileged user to potentially enable information disclosure via local access. Rated low severity (CVSS 2.3), this vulnerability is low attack complexity.
Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
An insertion of sensitive information into log file vulnerability [CWE-532] in FortiSIEM version 7.0.0, version 6.7.6 and below, version 6.6.3 and below, version 6.5.1 and below, version 6.4.2 and. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
An improper restriction of excessive authentication attempts vulnerability [CWE-307] in FortiMail webmail version 7.2.0 through 7.2.4, 7.0.0 through 7.0.6 and before 6.4.8 may allow an. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A untrusted search path vulnerability in Fortinet FortiClientWindows 7.0.9 allows an attacker to perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An exposure of sensitive information to an unauthorized actor [CWE-200] in FortiSIEM version 7.0.0 and before 6.7.5 may allow an attacker with access to windows agent logs to obtain the windows agent. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Microsoft Speech Application Programming Interface (SAPI) Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Installer Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Windows Hyper-V Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Local privilege escalation in the Windows Common Log File System (CLFS) driver allows authenticated low-privileged attackers to elevate to SYSTEM on Windows 10 (1507 through 22H2) and Windows 11 21H2. The flaw is confirmed actively exploited (CISA KEV) with publicly available exploit code, and EPSS places it in the 93rd percentile for exploitation likelihood. Microsoft has released patches via standard monthly updates.
Microsoft Windows Defender Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Hyper-V Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Hyper-V Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Windows Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Windows Kernel Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
Windows Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Windows Storage Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity.
Windows NTFS Information Disclosure Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.
Windows Search Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0).
Azure CLI REST Command Information Disclosure Vulnerability. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Windows Authentication Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Open Management Infrastructure Information Disclosure Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Windows DWM Core Library Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Visual Studio Code Jupyter Extension Spoofing Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
The startup process and device configurations of the Abbott ID NOW device, before v7.1, can be interrupted and/or modified via physical access to an internal serial port. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A vulnerability has been identified in SIMATIC PCS neo (All versions < V4.1). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.