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 (68875)
Bref enable serverless PHP on AWS Lambda. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Bref enable serverless PHP on AWS Lambda. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A vulnerability was found in python-glance-store. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Insertion of Sensitive Information into Log File vulnerabilities are affecting DELMIA Apriso Release 2019 through Release 2024. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Payment EX Ver1.1.5b and earlier allows a remote unauthenticated attacker to obtain the information of the user who purchases merchandise using Payment EX. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vault and Vault Enterprise (“Vault”) may expose sensitive information when enabling an audit device which specifies the `log_raw` option, which may log sensitive information to other audit devices,. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability exists in Rockwell Automation FactoryTalk® Service Platform that allows a malicious user to obtain the service token and use it for authentication on another FTSP directory. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability was found in Rebuild up to 3.5.5 and classified as problematic.getStorageFile of the file /filex/proxy-download. 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.
In Spring Cloud Contract, versions 4.1.x prior to 4.1.1, versions 4.0.x prior to 4.0.5, and versions 3.1.x prior to 3.1.10, test execution is vulnerable to local information disclosure via temporary. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. 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.
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required.
GoReleaser builds Go binaries for several platforms, creates a GitHub release and then pushes a Homebrew formula to a tap repository. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.
TrueLayer.NET is the .Net client for TrueLayer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.
vantage6-UI is the User Interface for vantage6. 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.
The vantage6 technology enables to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
The vantage6 technology enables to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC). Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.
A flaw was found in the Linux kernel's memory deduplication mechanism. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability, which was classified as problematic, has been found in openBI up to 1.0.8. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Weak password requirement vulnerability in Lamassu Bitcoin ATM Douro machines, in its 7.1 version , which allows a local user to interact with the machine where the application is installed, retrieve. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
Vulnerability of improper checking for unusual or exceptional conditions in Lamassu Bitcoin ATM Douro machines, in its 7.1 version, the exploitation of which could allow an attacker with physical. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An user enumeration vulnerability was found in SEO Panel 4.10.0. 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.
An email address enumeration vulnerability exists in the password reset function of SEO Panel version 4.10.0. 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.
Nginx-UI is a web interface to manage Nginx configurations. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability has been found in Shanxi Diankeyun Technology NODERP up to 6.0.2 and classified as critical. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Insertion of debug information into log file during building the elastic search index allows reading of sensitive information from articles.0.X through 7.0.48, from 8.0.X through 8.0.37, from 2023.X. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation vulnerability in the upload functionality for user avatars allows functionality misuse due to missing check of filetypes.0.X through 7.0.48, from 8.0.X through 8.0.37, from. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability classified as critical has been found in Sichuan Yougou Technology KuERP up to 1.0.4. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Insertion of Sensitive Information Into Sent Data vulnerability in InstaWP InstaWP Connect instawp-connect.1.0.9. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Thomas Maier Image Source Control Lite - Show Image Credits and Captions.17.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability was found in Totolink T8 4.1.5cu.833_20220905. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability was found in Totolink N350RT 9.3.5u.6255. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability was found in Totolink N200RE V5 9.3.5u.6255_B20211224. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Microsoft Edge (Chromium-based) Spoofing Vulnerability. Rated low severity (CVSS 2.5), this vulnerability is no authentication required.
Microsoft Edge for Android Spoofing Vulnerability. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no authentication required. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
Microsoft Edge (Chromium-based) Spoofing Vulnerability. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity.
Microsoft Edge for Android Information Disclosure Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
A hardcoded credential vulnerability exists in IBM Merge Healthcare eFilm Workstation. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A Missing Authentication for Critical Function vulnerability combined with a Generation of Error Message Containing Sensitive Information vulnerability in J-Web of Juniper Networks Junos OS on SRX. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Tuta is an encrypted email service. 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.
Networker 19.9 and all prior versions contains a Plain-text Password stored in temporary config file during backup duration in NMDA MySQL Database backups. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity. No vendor patch available.
Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier unconditionally discovers projects that are shared with the configured owner group, allowing attackers to configure and share a. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Jenkins Matrix Project Plugin 822.v01b_8c85d16d2 and earlier does not sanitize user-defined axis names of multi-configuration projects, allowing attackers with Item/Configure permission to create or. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2 (both inclusive) does not perform origin validation of requests made through the CLI WebSocket endpoint, resulting in a. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Lemmy is a link aggregator and forum for the fediverse. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Pimcore's Admin Classic Bundle provides a backend user interface for Pimcore. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Cozmoslabs Profile Builder Pro.10.0. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in SNP Digital SalesKing.6.15. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Since version 5.2.0, when using deferrable mode with the path of a Kubernetes configuration file for authentication, the Airflow worker serializes this configuration file as a dictionary and sends it. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Ignazio Scimone Albo Pretorio On line.6.6. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in IP2Location IP2Location Country Blocker.33.3. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Incorrect security UI in Payments in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to potentially spoof security UI via a crafted HTML page. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Inappropriate implementation in Accessibility in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to potentially exploit object corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Inappropriate implementation in Extensions API in Google Chrome prior to 121.0.6167.85 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Inappropriate implementation in Downloads in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to perform domain spoofing via a crafted domain name. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Insufficient policy enforcement in iOS Security UI in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to leak cross-origin data via a crafted HTML page. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A phishing site could have repurposed an `about:` dialog to show phishing content with an incorrect origin in the address bar. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A compromised content process could have updated the document URI. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
When a parent page loaded a child in an iframe with `unsafe-inline`, the parent Content Security Policy could have overridden the child Content Security Policy. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an incorrect timestamp used to prevent input after page load. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in ksmbd in the Linux kernel before 6.6.10. Rated high severity (CVSS 7.8), 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.
In the Linux kernel through 6.7.1, there is a use-after-free in cec_queue_msg_fh, related to drivers/media/cec/core/cec-adap.c and drivers/media/cec/core/cec-api.c. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Improper Input Validation in Hitron Systems DVR LGUVR-16H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation in Hitron Systems DVR LGUVR-8H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation in Hitron Systems DVR LGUVR-4H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation in Hitron Systems DVR HVR-16781 1.03~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation in Hitron Systems DVR HVR-8781 1.03~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation in Hitron Systems DVR HVR-4781 1.03~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved checks. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed with improved handling of files. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
An issue was addressed with improved handling of temporary files. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed with improved handling of user preferences. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved redaction of sensitive information. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved redaction of sensitive information. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An access issue was addressed with improved access restrictions. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with additional permissions checks. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with additional permissions checks. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
hoolock is a suite of lightweight utilities designed to maintain a small footprint when bundled. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) vulnerability could allow attackers to modify object prototypes to inject properties affecting application logic.
In Splunk Enterprise versions below 9.0.8, the Splunk RapidDiag utility discloses server responses from external applications in a log file. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In Splunk versions below 9.0.8 and 9.1.3, the “mrollup” SPL command lets a low-privileged user view metrics on an index that they do not have permission to view. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 or RSAOAEP decryption process. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
YonBIP v3_23.05 was discovered to contain an arbitrary file read vulnerability via the nc.bs.framework.comn.serv.CommonServletDispatcher component. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Consensys Discovery versions less than 0.4.5 uses the same AES/GCM nonce for the entire session. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.