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 (68406)
Incorrect privilege assignment vulnerability in the WEB UI (the setting page) exists in Wi-Fi AP UNIT 'AC-WPS-11ac series'. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper access control in Mdecservice prior to SMR Apr-2025 Release 1 allows local attackers to access arbitrary files with system privilege. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
This vulnerability exists in TP-Link Tapo H200 V1 IoT Smart Hub due to storage of Wi-Fi credentials in plain text within the device firmware. Rated medium severity (CVSS 4.4), this vulnerability is no authentication required. No vendor patch available.
wikiplugin_includetpl in lib/wiki-plugins/wikiplugin_includetpl.php in Tiki before 28.3 mishandles input to an eval. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
GraphicsMagick before 8e56520 has a heap-based buffer over-read in ReadJXLImage in coders/jxl.c, related to an ImportViewPixelArea call. Rated medium severity (CVSS 4.0), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
Improper restriction of environment variables in Elastic Defend can lead to exposure of sensitive information such as API keys and tokens via automatic transmission of unfiltered environment. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Lucee before 5.4.7.3 LTS and 6 before 6.1.1.118, when an attacker can place files on the server, is vulnerable to a protection mechanism failure that can let an attacker run code that would be. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity. No vendor patch available.
ColdFusion versions 2023.12, 2021.18, 2025.0 and earlier are affected by an Information Exposure vulnerability that could result in a security feature bypass. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
ColdFusion versions 2023.12, 2021.18, 2025.0 and earlier are affected by an Improper Access Control vulnerability that could result in arbitrary code execution. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A flaw was found in OpenSSL's handling of the properties argument in certain functions. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
XMP Toolkit versions 2023.12 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.
XMP Toolkit versions 2023.12 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.
XMP Toolkit versions 2023.12 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.
XMP Toolkit versions 2023.12 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.
XMP Toolkit versions 2023.12 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 Framemaker versions 2020.8, 2022.6 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 Framemaker versions 2020.8, 2022.6 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.
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Rated medium severity (CVSS 4.2), this vulnerability is remotely exploitable, no authentication required.
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Rated low severity (CVSS 2.6), this vulnerability is remotely exploitable.
Improper input validation in Dynamics Business Central allows an authorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
External control of file name or path in Azure Portal Windows Admin Center allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Untrusted pointer dereference in Windows Kernel Memory allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Insecure storage of sensitive information in Windows Kerberos allows an authorized attacker to bypass a security feature locally. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
Use of a cryptographic primitive with a risky implementation in Windows Cryptographic Services allows an authorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Exposure of sensitive information to an unauthorized actor in Outlook for Android allows an unauthorized attacker to disclose information over a network. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper access control in Visual Studio allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.3), this vulnerability is low attack complexity. No vendor patch available.
Untrusted search path in System Center allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read in Windows NTFS allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Exposure of sensitive information to an unauthorized actor in Windows Power Dependency Coordinator allows an authorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Sensitive data storage in improperly locked memory in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.0). No vendor patch available.
Improper input validation in OpenSSH for Windows allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Secure Channel allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.0). No vendor patch available.
Improper input validation in Azure Local allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Sensitive data storage in improperly locked memory in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges over a network. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.
Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Sensitive data storage in improperly locked memory in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.0). No vendor patch available.
Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sensitive data storage in improperly locked memory in Microsoft Streaming Service allows an unauthorized attacker to deny service over a network. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
After Effects versions 25.1, 24.6.4 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.
Animate versions 24.0.7, 23.0.10 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.
Animate versions 24.0.7, 23.0.10 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.
After Effects versions 25.1, 24.6.4 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.
After Effects versions 25.1, 24.6.4 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.
After Effects versions 25.1, 24.6.4 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.
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Out-of-bounds read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Exposure of sensitive information to an unauthorized actor in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Sensitive data storage in improperly locked memory in Windows upnphost.dll allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.0). No vendor patch available.
Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Epss exploitation probability 39.8% and no vendor patch available.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Secure Channel allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.0). No vendor patch available.
Sensitive data storage in improperly locked memory in Windows Kernel allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows Kerberos allows an authorized attacker to elevate privileges over a network. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Insufficiently protected credentials in Azure Local Cluster allows an authorized attacker to disclose information locally. Rated high severity (CVSS 7.3), this vulnerability is low attack complexity. No vendor patch available.
Insertion of sensitive information into log file in Azure Local Cluster allows an authorized attacker to disclose information over an adjacent network. Rated medium severity (CVSS 6.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper input validation in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
Time-of-check time-of-use (toctou) race condition in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally. Rated high severity (CVSS 7.0). No vendor patch available.
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in maennchen1.de m1.DownloadList.DownloadList: from n/a through 0.21. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Insecure default variable initialization in some Zoom Workplace Apps for Windows may allow an authenticated user to conduct a loss of integrity via local access. Rated low severity (CVSS 2.8), this vulnerability is low attack complexity. No vendor patch available.
A unverified password change vulnerability in Fortinet FortiSwitch GUI may allow a remote unauthenticated attacker to change admin passwords via a specially crafted request. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A local code execution vulnerability exists in the Rockwell Automation Arena® due to a threat actor being able to read outside of the allocated memory buffer. Rated high severity (CVSS 8.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A local code execution vulnerability exists in the Rockwell Automation Arena® due to a stack-based memory buffer overflow. Rated high severity (CVSS 8.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A local code execution vulnerability exists in the Rockwell Automation Arena® due to a threat actor being able to read outside of the allocated memory buffer. Rated high severity (CVSS 8.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A local code execution vulnerability exists in the Rockwell Automation Arena® due to a threat actor being able to read outside of the allocated memory buffer. Rated high severity (CVSS 8.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Element Web is a Matrix web client built using the Matrix React SDK. Rated low severity (CVSS 3.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An untrusted pointer dereference vulnerability in Ivanti Endpoint Manager before version 2024 SU1 or before version 2022 SU7 allows an attacker with local access to write arbitrary data into memory. Rated medium severity (CVSS 6.1), this vulnerability is low attack complexity. No vendor patch available.
Improper certificate validation in Ivanti Endpoint Manager before version 2024 SU1 or before version 2022 SU7 allows a remote unauthenticated attacker to intercept limited traffic between clients and. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
c-ares is an asynchronous resolver library. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Shopware 6 is an open commerce platform based on Symfony Framework and Vue. Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An Improper Output Neutralization for Logs vulnerability [CWE-117] in FortiAnalyzer version 7.6.1 and below, version 7.4.5 and below, version 7.2.8 and below, version 7.0.13 and below and. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.3, 7.2.0 through 7.2.7, 7.0.0 through 7.0.14, 6.4.0 through. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
An Incorrect User Management vulnerability [CWE-286] in FortiWeb version 7.6.2 and below, version 7.4.6 and below, version 7.2.10 and below, version 7.0.11 and below widgets dashboard may allow an. Rated medium severity (CVSS 6.2), this vulnerability is remotely exploitable. No vendor patch available.
A storing passwords in a recoverable format in Fortinet FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to information. Rated low severity (CVSS 2.3), this vulnerability is low attack complexity. No vendor patch available.
A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Multiple issues including the use of uninitialized ressources [CWE-908] and excessive iteration [CWE-834] vulnerabilities vulnerability in Fortinet allows a VPN user to corrupt memory potentially. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.