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 (68895)
An information leak in VISION MEAT WORKS Track Diner 10/10mbl v13.6.1 allows attackers to obtain the channel access token and send crafted messages. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An information leak in Daiky-value.Fukueten v13.6.1 allows attackers to obtain the channel access token and send crafted messages. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An information leak in Tokudaya.honten v13.6.1 allows attackers to obtain the channel access token and send crafted messages. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An information leak in shouzu sweets oz v13.6.1 allows attackers to obtain the channel access token and send crafted messages. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
An information leak in Gyouza-newhushimi v13.6.1 allows attackers to obtain the channel access token and send crafted messages. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue was discovered in IhisiServicesSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
NVIDIA GPU Display Driver for Windows contains a vulnerability where an attacker may be able to write arbitrary data to privileged locations by using reparse points. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
NVIDIA GPU Display Driver for Windows contains a vulnerability where an uncontrolled search path element may allow an attacker to execute arbitrary code, which may lead to code execution, denial of. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Franklin Fueling System TS-550 versions prior to 1.9.23.8960 are vulnerable to attackers decoding admin credentials, resulting in unauthenticated access to the device. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
GLPI is a free asset and IT management software package. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dell PowerScale OneFS 8.2.x, 9.0.0.x-9.5.0.x contains an improper handling of insufficient permissions. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Dell PowerScale OneFS 8.2.x,9.0.0.x-9.5.0.x contains a denial-of-service vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Mattermost Desktop for MacOS fails to utilize the secure keyboard input functionality provided by macOS, allowing for other processes to read the keyboard input. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
Mattermost Desktop fails to correctly handle permissions or prompt the user for consent on certain sensitive ones allowing media exploitation from a malicious mattermost server. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Squid is a caching proxy for the Web. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Incorrect security UI in Picture In Picture in Google Chrome prior to 119.0.6045.105 allowed a remote attacker to perform domain spoofing via a crafted local HTML page. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Inappropriate implementation in WebApp Provider in Google Chrome prior to 119.0.6045.105 allowed a remote attacker to obfuscate security UI via a crafted HTML page. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Incorrect security UI in Downloads in Google Chrome prior to 119.0.6045.105 allowed a remote attacker to obfuscate security UI via a crafted HTML page. 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 119.0.6045.105 allowed a remote attacker to obfuscate security UI via a crafted HTML page. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Incorrect security UI in Downloads in Google Chrome prior to 119.0.6045.105 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 data validation in USB in Google Chrome prior to 119.0.6045.105 allowed a remote attacker to perform out of bounds memory access 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.
Improper access control in Report log filters feature in Devolutions Server 2023.2.10.0 and earlier allows attackers to retrieve logs from vaults or entries they are not allowed to access via the. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in the file download feature of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to download arbitrary files from an affected system. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Insecure job execution mechanism vulnerability. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The SolarWinds Network Configuration Manager was susceptible to the Exposure of Sensitive Information Vulnerability. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In dm service, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In engineermode, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In engineermode, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In engineermode, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In engineermode, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In engineermode, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Ifaa service, there is a possible way to write permission usage records of an app due to a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Ifaa service, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In sim service, there is a possible way to write permission usage records of an app due to a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In dm service, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In validationtools, there is a possible missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Poorly constructed webap requests and URI components with special characters trigger unhandled errors and exceptions, disclosing information about the underlying technology and other sensitive. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The responses for web queries with certain parameters disclose internal path of resources. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The response messages received from the eSOMS report generation using certain parameter queries with full file path can be abused for enumerating the local file system structure. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Authenticated clients can read arbitrary files on the MAIN Computer system using the remote procedure call (RPC) of the InspectSetup service endpoint. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Insufficient Session Expiration in GitHub repository pkp/pkp-lib prior to 3.3.0-16. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Insufficient session expiration in Elenos ETG150 FM Transmitter v3.12 allows attackers to arbitrarily change transmitter configuration and data after logging out. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Improper access control in Elenos ETG150 FM transmitter v3.12 allows attackers to make arbitrary configuration edits that are only accessed by privileged users. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
A lack of rate limiting in Elenos ETG150 FM transmitter v3.12 allows attackers to obtain user credentials via brute force and cause other unspecified impacts. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
An issue discovered in Elenos ETG150 FM transmitter v3.12 allows attackers to enumerate user accounts based on server responses when credentials are submitted. 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.
Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. 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.
lte-pic32-writer is a writer for PIC32 devices. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
SpiceDB is an open source, Google Zanzibar-inspired database for creating and managing security-critical application permissions. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
CodeIgniter is a PHP full-stack web framework. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
quic-go is an implementation of the QUIC protocol in Go. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
The C:\Windows\Temp\Agent.Package.Availability\Agent.Package.Availability.exe file is automatically launched as SYSTEM when the system reboots. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
The Campaign Monitor Forms by Optin Cat WordPress plugin before 2.5.6 does not prevent users with low privileges (like subscribers) from overwriting any options on a site with the string "true",. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
The HTML filter and csv-file search plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 2.7 via the 'src' attribute of the 'csvsearch' shortcode. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.
The 'check_univention_joinstatus' prometheus monitoring script (and other scripts) in UCS 5.0-5 revealed the LDAP plaintext password of the machine account in the process list allowing attackers with. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in GitHub repository thorsten/phpmyfaq prior to 3.2.1. Rated medium severity (CVSS 5.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
Insufficient Session Expiration in GitHub repository thorsten/phpmyfaq prior to 3.2.2. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
JumpServer is an open source bastion host and maintenance security audit system that complies with 4A specifications. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
In collapse of canonicalize_md.c, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Bluetooth, there is a possible out of bounds read due to a use after free. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In registerPhoneAccount of TelecomServiceImpl.java, there is a possible way to reveal images from another user due to a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In User Backup Manager, there is a possible way to leak a token to bypass user confirmation for backup due to log information disclosure. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In Whitechapel, there is a possible out of bounds read due to memory corruption. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Package Manager, there is a possible possible permissions bypass due to an unsafe PendingIntent. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Settings, there is a possible way for the user to unintentionally send extra data due to an unclear prompt. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In Content Resolver, there is a possible method to access metadata about existing content providers on the device due to a missing permission check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Bluetooth, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In SELinux Policy, there is a possible restriction bypass due to a permissions bypass. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Telephony, there is a possible way to retrieve the ICCID due to a logic error in the code. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In libdexfile, there is a possible out of bounds read due to a missing bounds check. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
In Audio, there is a possible out of bounds read due to missing bounds check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Scudo, there is a possible way to exploit certain heap OOB read/write issues due to an insecure implementation/design. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Scudo, there is a possible way for an attacker to predict heap allocation patterns due to insecure implementation/design. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In Bluetooth, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In NFC, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In Package Manager Service, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In NFA, there is a possible out of bounds read due to a missing bounds check. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In NFA, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.