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)
Insufficiently Protected Credentials vulnerability in SicommNet BASEC on SaaS allows Password Recovery. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. No vendor patch available.
Out-of-bounds read in libsoup's soup_multipart_new_from_message() function allows remote attackers to disclose sensitive memory contents and potentially crash server applications. Malicious HTTP clients can trigger this memory safety flaw (CWE-125) by sending crafted multipart messages to libsoup-based servers, affecting Red Hat Enterprise Linux distributions and Debian systems. With EPSS at 0.52% (67th percentile) and no confirmed active exploitation, this represents moderate real-world risk requiring assessment of deployment exposure to untrusted HTTP clients.
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
IBM Robotic Process Automation and Robotic Process Automation for Cloud Pak 21.0.0 through 21.0.7.20 and 23.0.0 through 23.0.20 does not invalidate session after a logout which could allow an. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability was found in JamesZBL/code-projects db-hospital-drug 1.0 and classified as critical. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in libsoup, where the soup_headers_parse_request() function may be vulnerable to an out-of-bound read. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability, which was classified as problematic, was found in veal98 小牛肉 Echo 开源社区系统 4.2. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability classified as problematic has been found in huanfenz/code-projects StudentManager up to 1.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Internet Starter, one of SoftCOM iKSORIS system modules, allows for setting an arbitrary session cookie value. Rated low severity (CVSS 2.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Internet Starter, one of SoftCOM iKSORIS system modules, is vulnerable to client-side Denial of Servise (DoS) attacks. 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 WuzhiCMS 4.1. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability classified as problematic was found in ScriptAndTools eCommerce-website-in-PHP 3.0. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
A vulnerability classified as problematic has been found in ScriptAndTools eCommerce-website-in-PHP 3.0. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Mattermost Mobile Apps versions <=2.25.0 fail to terminate sessions during logout under certain conditions (e.g. Rated low severity (CVSS 2.0), this vulnerability is no authentication required. No vendor patch available.
Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. No vendor patch available.
Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. No vendor patch available.
A vulnerability has been found in wowjoy 浙江湖州华卓信息科技有限公司 Internet Doctor Workstation System 1.0 and classified as problematic. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability was found in Tutorials-Website Employee Management System 1.0. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A vulnerability was found in Tutorials-Website Employee Management System 1.0 and classified as critical. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Crypt::CBC versions between 1.21 and 3.05 for Perl may use the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Rated medium severity (CVSS 4.0), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The Developer Toolbar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.0.3 through the publicly accessible phpinfo.php script. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Cart66 Cloud plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.3.7 through the publicly accessible phpinfo.php script. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Out-of-bounds read in Microsoft Edge (Chromium-based) 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.
Uncontrolled search path element in Visual Studio Tools for Applications and SQL Server Management 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.
An improper exception check in Palo Alto Networks Prisma Access Browser allows a low privileged user to prevent Prisma Access Browser from applying it's Policy Rules. Rated critical severity (CVSS 9.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An input validation weakness was reported in the TpmSetup module for some legacy System x server products that could allow a local attacker with elevated privileges to read the contents of memory. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability in the Palo Alto Networks PAN-OS® software enables unlicensed administrators to view clear-text data captured using the packet capture feature. Rated medium severity (CVSS 5.9), this vulnerability is low attack complexity. No vendor patch available.
The Oz Forensics face recognition application before 4.0.8 late 2023 allows PII retrieval via /statistic/list Insecure Direct Object Reference. Rated high severity (CVSS 8.6), 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 The Wikimedia Foundation Mediawiki - Mobile Frontend Extension allows Shared Resource Manipulation.39 through 1.43. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments allows HTTP DoS.39 through 1.43. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - Visual Data Extension allows HTTP DoS.39 through 1.43. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Subnet Solutions PowerSYSTEM Center's SMTPS notification service can be affected by importing an EC certificate with crafted F2m parameters, which can lead to excessive CPU consumption during the. Rated medium severity (CVSS 5.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The Everest Forms - Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Deserialization of Untrusted Data vulnerability could allow attackers to execute arbitrary code through malicious serialized objects.
A Exposure of Sensitive Information to an Unauthorized Actor vulnerability in SUSE rancher which allows users to watch resources they are not allowed to access, when they have at least some generic. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A Incorrect Privilege Assignment vulnerability in SUSE rancher allows a Restricted Administrator to change the password of Administrators and take over their accounts.8.0 before 2.8.14, from 2.9.0. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A Exposure of Sensitive Information to an Unauthorized Actor vulnerability in SUSE rancher allowed unauthenticated users to list all CLI authentication tokens and delete them before the CLI is able. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A Exposure of Sensitive Information to an Unauthorized Actor vulnerability in SUSE rancher allowing any users with GET access to the Rancher Manager Apps Catalog to read any sensitive information. Rated medium severity (CVSS 6.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Use of hard-coded cryptographic key issue exists in BizRobo!. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in g5theme Ultimate Bootstrap Elements for Elementor allows PHP Local File. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in roninwp FAT Cooming Soon allows PHP Local File Inclusion.1. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in NotFound Testimonial Slider And Showcase Pro allows PHP Local File. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Stylemix Motors allows PHP Local File Inclusion.4.65. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in JoomSky JS Job Manager allows PHP Local File Inclusion.0.2. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Ashan Perera EventON allows PHP Local File Inclusion.3.2. Rated high severity (CVSS 8.8), 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 odude Flexi - Guest Submit allows PHP Local File Inclusion.28. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in hakeemnala Build App Online allows PHP Local File Inclusion.0.23. Rated critical severity (CVSS 9.8), 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 ThemeAtelier IDonate allows PHP Local File Inclusion.1.8. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in NotFound WP Food ordering and Restaurant Menu allows PHP Local File. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Adrian Tobey WordPress SMTP Service, Email Delivery Solved!. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ho3einie Material Dashboard allows PHP Local File Inclusion.4.5. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.
The InstaWP Connect - 1-click WP Staging & Migration plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 0.1.0.85 via the 'instawp-database-manager'. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 10.2% and no vendor patch available.
When using the ch-go library, under a specific condition when the query includes a large, uncompressed malicious external data, it is possible for an attacker in control of such data to smuggle. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable. No vendor patch available.
CodeLit CourseLit before 0.57.5 allows Parameter Tampering via a payment plan associated with the wrong entity. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable. No vendor patch available.
Dell PowerProtect Cyber Recovery, versions prior to 19.18.0.2, contains an Insertion of Sensitive Information Into Sent Data vulnerability. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable. No vendor patch available.
A denial-of-service (DoS) vulnerability in the Simple Certificate Enrollment Protocol (SCEP) authentication feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
When configured using SAML, a session fixation vulnerability in the GlobalProtect™ login enables an attacker to impersonate a legitimate authorized user and perform actions as that GlobalProtect. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables a malicious authenticated read-write administrator to impersonate. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An authenticated file deletion vulnerability in the Palo Alto Networks PAN-OS® software enables an authenticated attacker with network access to the management web interface to delete certain files. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
W. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation AbuseFilter. Rated low severity (CVSS 2.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid.39.12, 1.42.6, 1.43.1; Parsoid: before 0.16.5, 0.19.2, 0.20.2. Rated low severity (CVSS 2.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. Rated low severity (CVSS 2.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper Preservation of Permissions vulnerability in Wikimedia Foundation MediaWiki. Rated remotely exploitable, low attack complexity. No vendor patch available.
Improper Preservation of Permissions vulnerability in Wikimedia Foundation MediaWiki. Rated remotely exploitable, low attack complexity. No vendor patch available.
An Improper Link Resolution Before File Access ('Link Following') vulnerability in SonicWall NetExtender Windows (32 and 64 bit) client which allows an attacker to manipulate file paths. Rated high severity (CVSS 7.2), this vulnerability is low attack complexity. No vendor patch available.
Metabase is an open source Business Intelligence and Embedded Analytics tool. Rated low severity (CVSS 1.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
BlueCMS 1.6 suffers from Arbitrary File Deletion via the id parameter in an /publish.php?act=del request. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Vite is a frontend tooling framework for javascript. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue has been discovered in GitLab CE/EE affecting all versions from 17.9 before 17.9.6, and 17.10 before 17.10.4. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
An issue has been discovered in GitLab CE/EE affecting all versions from 13.12 before 17.8.7, 17.9 before 17.9.6, and 17.10 before 17.10.4. 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.