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 (13643)
MSI Center before 2.0.52.0 has Missing PE Signature Validation. Rated high severity (CVSS 8.1), this vulnerability is no authentication required. No vendor patch available.
An issue has been discovered in GitLab EE affecting all versions from 17.1 before 17.8.7, 17.9 before 17.9.6, and 17.10 before 17.10.4. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable. No vendor patch available.
In jenkins/ssh-slave Docker images based on Debian, SSH host keys are generated on image creation for images based on Debian, causing all containers based on images of the same version use the same. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In jenkins/ssh-agent Docker images 6.11.1 and earlier, SSH host keys are generated on image creation for images based on Debian, causing all containers based on images of the same version use the. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Crocoblock JetCompareWishlist allows PHP Local File Inclusion.5.9. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Rameez Iqbal Real Estate Manager allows PHP Local File Inclusion.3. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in WP Messiah Ai Image Alt Text Generator for WP.0.8. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Ashan Perera EventON.3.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in aThemes aThemes Addons for Elementor.0.15. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. No vendor patch available.
Improper neutralization of livestatus command delimiters in a specific endpoint within RestAPI of Checkmk prior to 2.2.0p39, 2.3.0p25, and 2.1.0p51 (EOL) allows arbitrary livestatus command. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Dell PowerScale OneFS, versions 9.5.0.0 through 9.10.1.0, contains a use of default password vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dell PowerScale OneFS, versions 9.4.0.0 through 9.10.0.0, contains an exposure of information through directory listing vulnerability. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Yii Framework 2 before 2.0.52 contains a behavior attachment regression that allows attackers to exploit the __class array key for arbitrary class instantiation, exploited in the wild February-April 2025.
In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding. Rated medium severity (CVSS 4.3), this vulnerability is no authentication required, low attack complexity.
Dell Client Platform BIOS contains a Security Version Number Mutable to Older Versions vulnerability. Rated low severity (CVSS 3.1), this vulnerability is low attack complexity. No vendor patch available.
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. No vendor patch available.
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. No vendor patch available.
Charmed MySQL K8s operator is a Charmed Operator for running MySQL on Kubernetes. Rated medium severity (CVSS 5.0), this vulnerability is low attack complexity. No vendor patch available.
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A Missing Release of Memory after Effective Lifetime vulnerability in the Anti-Virus processing of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged, authenticated. Rated medium severity (CVSS 6.8), this vulnerability is low attack complexity. No vendor patch available.
Out of bounds write vulnerability due to improper bounds checking in NI LabVIEW reading CPU info from cache that may result in information disclosure or arbitrary code execution. Rated high severity (CVSS 8.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Out of bounds write vulnerability due to improper bounds checking in NI LabVIEW in InitCPUInformation() that may result in information disclosure or arbitrary code execution. Rated high severity (CVSS 8.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in WP Shuffle WP Subscription Forms allows PHP Local File Inclusion.2.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in wpWax Logo Showcase Ultimate allows PHP Local File Inclusion.4.4. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Bogdan Bendziukov Squeeze allows Retrieve Embedded Sensitive Data.6. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Shopware is an open source e-commerce software platform. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 67.3%.
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Microsoft Identity Web is a library which contains a set of reusable classes used in conjunction with ASP.NET Core for integrating with the Microsoft identity platform (formerly Azure AD v2.0. Rated medium severity (CVSS 4.7). No vendor patch available.
Insertion of Sensitive Information into Log File vulnerability in Apache ActiveMQ Artemis. Rated medium severity (CVSS 6.8), this vulnerability is low attack complexity. No vendor patch available.
IBM Security Guardium 11.4 and 12.1 could allow a privileged user to read any file on the system due to incorrect privilege assignment. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Insufficient Session Expiration vulnerability in Progress Software Corporation Sitefinity under some specific and uncommon circumstances allows reusing Session IDs (Session Replay Attacks).0 through. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Input Validation vulnerability in Apache POI. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Apache Pulsar contains multiple connectors for integrating with Apache Kafka. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
confidentiality when a malicious user, having physical access, sets the radio in factory default mode where the product does not correctly initialize all data. Rated medium severity (CVSS 4.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
access of confidential data when a malicious user, having physical access and advanced information on the file system, sets the radio in factory default mode. Rated medium severity (CVSS 4.1), this vulnerability is no authentication required. No vendor patch available.
Availability of engineering workstation when a malicious project file is loaded by a user from the local system. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
information and potential privilege escalation following man in the middle attack. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Information disclosure of authentication information in the specific service vulnerability exists in Wi-Fi AP UNIT 'AC-WPS-11ac series'. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Cleartext transmission of sensitive information issue exists in Wi-Fi AP UNIT 'AC-WPS-11ac series'. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
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.