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 (69476)
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Potential vulnerabilities have been identified in the system BIOS of certain HP PC products which may allow Escalation of Privilege, Arbitrary Code Execution, Unauthorized Code Execution, Denial of. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds Read error in tiffcp in libtiff 4.3.0 allows attackers to cause a denial-of-service via a crafted tiff file. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
Divide By Zero error in tiffcrop in libtiff 4.3.0 allows attackers to cause a denial-of-service via a crafted tiff file. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
A flaw was found in JBoss-client. 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.
Non-transparent sharing of branch predictor within a context in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity.
Non-transparent sharing of branch predictor selectors between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity.
The following Yokogawa Electric products contain insecure DLL loading issues. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
CAMS for HIS Log Server contained in the following Yokogawa Electric products fails to properly neutralize log outputs: CENTUM CS 3000 versions from R3.08.10 to R3.09.00, CENTUM VP versions from. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
'Root Service' service implemented in the following Yokogawa Electric products creates some named pipe with improper ACL configuration. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
'Long-term Data Archive Package' service implemented in the following Yokogawa Electric products creates some named pipe with imporper ACL configuration. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
drivers/bluetooth/virtio_bt.c in the Linux kernel before 5.16.3 has a memory leak (socket buffers have memory allocated but not freed). Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
FreeTAKServer-UI v1.9.8 was discovered to leak sensitive API and Websocket keys. 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 the ?filename= argument of the route /DataPackageTable in FreeTAKServer-UI v1.9.8 allows attackers to place arbitrary files anywhere on the system. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Improper access control vulnerability in McAfee WebAdvisor Chrome and Edge browser extensions up to 8.1.0.1895 allows a remote attacker to gain access to McAfee WebAdvisor settings and other details. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
SPIP before 3.2.14 and 4.x before 4.0.5 allows unauthenticated access to information about editorial objects. 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.
Veritas System Recovery (VSR) 18 and 21 stores a network destination password in the Windows registry during configuration of the backup configuration. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An XML Entity Expansion (XEE) issue was discovered in Tryton Application Platform (Server) 5.x through 5.0.45, 6.x through 6.0.15, and 6.1.x and 6.2.x through 6.2.5, and Tryton Application Platform. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
In pgjdbc before 42.3.3, an attacker (who controls the jdbc URL or properties) can call java.util.logging.FileHandler to write to arbitrary files through the loggerFile and loggerLevel connection. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
In Python before 3.10.3 on Windows, local users can gain privileges because the search path is inadequately secured. Rated high severity (CVSS 7.0). No vendor patch available.
Citrix Federated Authentication Service (FAS) 7.17 - 10.6 causes deployments that have been configured to store a registration authority certificate's private key in a Trusted Platform Module (TPM). Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Couchbase Operator 2.2.x before 2.2.3 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.
Power Line Communications PLC4TRUCKS J2497 trailer receivers are susceptible to remote RF induced signals. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Information Exposure vulnerability in Galaxy Watch3 Plugin prior to version 2.2.09.22012751 allows attacker to access password information of connected WiFiAp in the log. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Information Exposure vulnerability in Watch Active2 Plugin prior to version 2.2.08.22012751 allows attacker to access password information of connected WiFiAp in the log. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Information Exposure vulnerability in Watch Active Plugin prior to version 2.2.07.22012751 allows attacker to access password information of connected WiFiAp in the log. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Information Exposure vulnerability in Galaxy Watch Plugin prior to version 2.2.05.22012751 allows attacker to access password information of connected WiFiAp in the log. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Information Exposure vulnerability in Galaxy S3 Plugin prior to version 2.2.03.22012751 allows attacker to access password information of connected WiFiAp in the log. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Information Exposure vulnerability in Galaxy Watch Plugin prior to version 2.2.05.220126741 allows attackers to access user information in log. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Improper use of SMS buffer pointer in Shannon baseband prior to SMR Mar-2022 Release 1 allows OOB read. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
A vulnerable design in fingerprint matching algorithm prior to SMR Mar-2022 Release 1 allows physical attackers to perform brute force attack on screen lock password. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
OOB read vulnerability in hdcp2 device node prior to SMR Mar-2022 Release 1 allow an attacker to view Kernel stack memory. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Spectre BHB is a variant of Spectre-v2 in which malicious code uses the shared branch history (stored in the CPU BHB) to influence mispredicted branches in the victim's hardware context. Rated medium severity (CVSS 4.7).
Use after free vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by having. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Vault Enterprise clusters using the tokenization transform feature can expose the tokenization key through the tokenization key configuration endpoint to authorized operators with `read` permissions. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
"Vault and Vault Enterprise 1.8.0 through 1.8.8, and 1.9.3 allowed the PKI secrets engine under certain configurations to issue wildcard certificates to authorized users for a specified domain, even. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Out-of-bounds write vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Use after free vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by having. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A null byte interaction error has been discovered in the code that the telnetd_startup daemon uses to construct a pair of ephemeral passwords that allow a user to spawn a telnet service on the. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
The use of the RSA algorithm without OAEP, or any other padding scheme, in telnetd_startup, allows an unauthenticated attacker on the local area network to achieve a significant degree of control. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Improper access control on the LocalMACConfig.asp interface allows an unauthenticated remote attacker to add (or remove) client MAC addresses to (or from) a list of banned hosts. 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.
Improper access control on the LocalClientList.asp interface allows an unauthenticated remote attacker to obtain sensitive information concerning devices on the local area network, including IP and. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Improper Protection of Alternate Path vulnerability in Setup wizard process prior to SMR Mar-2022 Release 1 allows physical attacker package installation before finishing Setup wizard. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Unprotected Activity in AppLock prior to SMR Mar-2022 Release 1 allows attacker to change the list of locked app without authentication. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Security misconfiguration of RKP in kernel prior to SMR Mar-2022 Release 1 allows a system not to be protected by RKP. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Heimdal.Wizard.exe installer in Heimdal Premium Security 2.5.395 and earlier has insecure permissions, which allows unprivileged local users to elevate privileges to SYSTEM via the "Browse For. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Under certain conditions SAP Business Objects Business Intelligence Platform - versions 420, 430, allows an authenticated attacker to access information which would otherwise be restricted. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Simple Diagnostics Agent - versions 1.0 (up to version 1.57.), allows an attacker to access information which would otherwise be restricted via a random port 9000-65535. 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.
Out-of-bounds read vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Improper check for certificate revocation in i-FILTER Ver.10.45R01 and earlier, i-FILTER Ver.9.50R10 and earlier, i-FILTER Browser & Cloud MultiAgent for Windows Ver.4.93R04 and earlier, and D-SPA. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Out-of-bounds write vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A heap buffer overflow in ExtractImageSection function in tiffcrop.c in libtiff library Version 4.3.0 allows attacker to trigger unsafe or out of bounds memory access via crafted TIFF image file. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
PhpMyAdmin 5.1.1 and before allows an attacker to retrieve potentially sensitive information by creating invalid requests. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A flaw was found in keepass. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability was found in kvm_s390_guest_sida_op in the arch/s390/kvm/kvm-s390.c function in KVM for s390 in the Linux kernel. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Shopware is an open commerce platform based on the Symfony php Framework and the Vue javascript framework. 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.
Shopware is an open commerce platform based on the Symfony php Framework and the Vue javascript framework. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Shopware is an open commerce platform based on the Symfony php Framework and the Vue javascript framework. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity.
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a disruption of communication between the Modicon controller and the engineering software, when. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Maddy Mail Server is an open source SMTP compatible email server. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.
Usage of a weak cryptographic algorithm in Palo Alto Networks PAN-OS software where the password hashes of administrator and local user accounts are not created with a sufficient level of. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Visual Studio Code Spoofing Vulnerability. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Windows Update Stack Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0). No vendor patch available.
Skype Extension for Chrome Information Disclosure Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Azure Site Recovery Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Azure Site Recovery Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Azure Site Recovery Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Microsoft Office Word Tampering Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Azure Site Recovery Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Windows ALPC Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0). No vendor patch available.
Remote Desktop Protocol Client Information Disclosure Vulnerability. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Azure Site Recovery Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Microsoft Exchange Server Spoofing Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Tablet Windows User Interface Application Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0), this vulnerability is no authentication required. No vendor patch available.
Windows Fax and Scan Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Windows CD-ROM Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Windows Security Support Provider Interface Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Windows PDEV Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Windows NT OS Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0). No vendor patch available.
Windows NT Lan Manager Datagram Receiver Driver Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Windows Fast FAT File System Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.