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 (68681)
Microsoft AllJoyn API Information Disclosure Vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.
Windows Kernel-Mode Driver Information Disclosure Vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.
Windows Authentication Information Disclosure Vulnerability. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), 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.
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), 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.
Windows Graphics Component Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), 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.
Windows Storage Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.0). This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
Windows Graphics Component Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Kernel Streaming Service Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Kernel Streaming Service Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Kernel Streaming Service Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Kernel Streaming Service Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.8), 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.
Windows Kerberos Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity.
Azure Stack Hub Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity.
An authenticated attacker can exploit an improper authorization vulnerability in Azure Web Apps to elevate privileges over a network. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity.
Azure Network Watcher VM Agent Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity.
PowerShell Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
Microsoft SQL Server Native Scoring Information Disclosure Vulnerability. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Microsoft SQL Server Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Microsoft SQL Server Native Scoring Information Disclosure Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Microsoft SQL Server Native Scoring Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Microsoft SQL Server Native Scoring Information Disclosure Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
Out-of-Bounds read vulnerability in OSCAT Basic Library allows an local, unprivileged attacker to access limited internal data of the PLC which may lead to a crash of the affected service. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
XWiki Platform is a generic wiki platform. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Sunshine is a self-hosted game stream host for Moonlight. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
Vulnerability in Hathway Skyworth Router CM5100 v.4.1.1.24 allows a physically proximate attacker to obtain user credentials via SPI flash Firmware W25Q64JV. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Citrix Workspace App version 23.9.0.24.4 on Dell ThinOS 2311 contains an Incorrect Authorization vulnerability when Citrix CEB is enabled for WebLogin. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.
An improperly implemented security check for standard vulnerability [CWE-358] in FortiADC Web Application Firewall (WAF) 7.4.0 through 7.4.4, 7.2 all versions, 7.1 all versions, 7.0 all versions, 6.2. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A cleartext storage of sensitive information in memory vulnerability [CWE-316] affecting FortiClient VPN iOS 7.2 all versions, 7.0 all versions, 6.4 all versions, 6.2 all versions, 6.0 all versions. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An exposure of sensitive information to an unauthorized actor vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.4, FortiSandbox 4.2.1 through 4.2.6, FortiSandbox 4.0 all versions, FortiSandbox. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
AAn improper certificate validation vulnerability [CWE-295] in FortiClientWindows 7.2.0 through 7.2.2, 7.0.0 through 7.0.11, FortiClientLinux 7.2.0, 7.0.0 through 7.0.11 and FortiClientMac 7.0.0. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
MongoDB Server may access non-initialized region of memory leading to unexpected behaviour when zero arguments are called in internal aggregation stage. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability has been identified in SINUMERIK 828D V4 (All versions < V4.95 SP3), SINUMERIK 840D sl V4 (All versions < V4.95 SP3 in connection with using Create MyConfig (CMC) <= V4.8 SP1 HF6),. Rated medium severity (CVSS 6.8), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP2). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability has been identified in SINEMA Remote Connect Client (All versions < V3.2 SP2). Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity.
A vulnerability has been identified in SIMATIC Reader RF610R CMIIT (6GT2811-6BC10-2AA0) (All versions < V4.2), SIMATIC Reader RF610R ETSI (6GT2811-6BC10-0AA0) (All versions < V4.2), SIMATIC Reader. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability has been identified in SIMATIC Reader RF610R CMIIT (6GT2811-6BC10-2AA0) (All versions < V4.2), SIMATIC Reader RF610R ETSI (6GT2811-6BC10-0AA0) (All versions < V4.2), SIMATIC Reader. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability has been identified in SIMATIC Reader RF610R CMIIT (6GT2811-6BC10-2AA0) (All versions < V4.2), SIMATIC Reader RF610R ETSI (6GT2811-6BC10-0AA0) (All versions < V4.2), SIMATIC Reader. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
A vulnerability has been identified in SIMATIC Reader RF610R CMIIT (6GT2811-6BC10-2AA0) (All versions < V4.2), SIMATIC Reader RF610R ETSI (6GT2811-6BC10-0AA0) (All versions < V4.2), SIMATIC Reader. Rated high severity (CVSS 7.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Dell Precision Rack, 14G Intel BIOS versions prior to 2.22.2, contains an Access of Memory Location After End of Buffer vulnerability. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Dell PowerScale InsightIQ, versions 5.0 through 5.1, contains a Use of a Broken or Risky Cryptographic Algorithm vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dell PowerScale InsightIQ, version 5.0, contain a Use of hard coded Credentials vulnerability. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Dell PowerScale InsightIQ, versions 5.0 through 5.1, contains a File or Directories Accessible to External Parties vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Dell Precision Rack, 14G Intel BIOS versions prior to 2.22.2, contains an Improper Input Validation vulnerability. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. No vendor patch available.
51l3nc3, member of the AXIS OS Bug Bounty Program, has found that a Guard Tour VAPIX API parameter allowed the use of arbitrary values allowing for an attacker to block access to the guard tour. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
SAP NetWeaver AS for Java allows an authorized attacker to obtain sensitive information. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. No vendor patch available.
SAP BusinessObjects Business Intelligence Platform allows a high privilege user to run client desktop applications even if some of the DLLs are not digitally signed or if the signature is broken. Rated medium severity (CVSS 5.8), this vulnerability is low attack complexity.
Under certain conditions Statutory Reports in SAP S/4 HANA allows an attacker with basic privileges to access information which would otherwise be restricted. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
All versions of the package node-gettext are vulnerable to Prototype Pollution via the addTranslations() function in gettext.js due to improper user input sanitization. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Due to lack of proper authorization checks when calling user, a function module in obsolete Tobin interface in SAP Production and Revenue Accounting allows unauthorized access that could lead to. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Due to missing authorization checks, SAP Business Warehouse (BEx Analyzer) allows an authenticated attacker to access information over the network which is otherwise restricted. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Due to missing authorization checks, SAP BEx Analyzer allows an authenticated attacker to access information over the network which is otherwise restricted. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for web authentication tokens generation exists in the Zyxel GS1900-10HP firmware version. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in Samsung Mobile Processor Exynos Mobile Processor, Wearable Processor Exynos 980, Exynos 850, Exynos 1080, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 1480, Exynos W920,. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in Samsung Mobile Processor Exynos Wearable Processor Exynos 980, Exynos 850, Exynos 1080, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 1480, Exynos W920, Exynos W930. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in Samsung Mobile Processor, Wearable Processor Exynos Exynos 980, Exynos 850, Exynos 1080, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 1480, Exynos W920, Exynos W930. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in Mobile Processor, Wearable Processor Exynos 980, Exynos 850, Exynos 1080, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 1480, Exynos W920, Exynos W930. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A session fixation issue was discovered in the SAML adapters provided by Keycloak. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable. No vendor patch available.
A vulnerability was found in Keycloak. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Improper host key checking in active check 'Check SFTP Service' and special agent 'VNX quotas and filesystem' in Checkmk before Checkmk 2.3.0p15, 2.2.0p33, 2.1.0p48 and 2.0.0 (EOL) allows. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper authorization in handler for custom URL scheme issue in "@cosme" App for Android versions prior 5.69.0 and "@cosme" App for iOS versions prior to 6.74.0 allows an attacker to lead a user to. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Loway - CWE-204: Observable Response Discrepancy. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Loway - CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling'). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability was found in erjemin roll_cms up to 1484fe2c4e0805946a7bcf46218509fcb34883a9. Rated medium severity (CVSS 5.1), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability that allows an attacker to access the NTLM hash of the Veeam Reporter Service service account. Rated high severity (CVSS 8.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An improper certificate validation vulnerability in TLS certificate validation allows an attacker on the same network to intercept sensitive credentials during restore operations. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
An improper input validation vulnerability that allows a low-privileged user to remotely remove files on the system with permissions equivalent to those of the service account. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An authentication bypass vulnerability can allow a low privileged attacker to access the NTLM hash of service account on the VSPC server. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability classified as problematic was found in SourceCodester Food Ordering Management System 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.
IBM Maximo Application Suite - Manage Component 8.10, 8.11, and 9.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information using man. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Cost Calculator Builder PRO plugin for WordPress is vulnerable to price manipulation in all versions up to, and including, 3.2.1. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Big File Uploads - Increase Maximum File Upload Size plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 2.1.2. Rated medium severity (CVSS 4.3), 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.
Example DAG: example_inlet_event_extra.py shipped with Apache Airflow version 2.10.0 has a vulnerability that allows an authenticated attacker with only DAG trigger permission to execute arbitrary. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An improper certificate validation vulnerability has been reported to affect QuMagie. Rated low severity (CVSS 1.0), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An improper restriction of excessive authentication attempts vulnerability has been reported to affect several QNAP operating system versions. Rated low severity (CVSS 2.4), this vulnerability is low attack complexity. No vendor patch available.
A path traversal vulnerability has been reported to affect several QNAP operating system versions. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
D-Link DIR-823G v1.0.2B05_20181207 is vulnerable to Information Disclosure. 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.
Dovecot accepts dot LF DOT LF symbol as end of DATA command. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
alf.io is an open source ticket reservation system for conferences, trade shows, workshops, and meetups. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
gnark is a fast zk-SNARK library that offers a high-level API to design circuits. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
gnark is a fast zk-SNARK library that offers a high-level API to design circuits. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Authorization Bypass Through User-Controlled Key, Missing Authorization vulnerability in Ariva Computer Accord ORS allows Retrieve Embedded Sensitive Data.3.2.1. Rated critical severity (CVSS 9.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
tgt (aka Linux target framework) before 1.0.93 attempts to achieve entropy by calling rand without srand. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Dell SmartFabric OS10 Software, version(s) 10.5.5.4 through 10.5.5.10 and 10.5.6.x, contain(s) an Use of Hard-coded Password vulnerability. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The Remember Me Controls plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 2.0.1. 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 issue was addressed by suspending Persona when the virtual keyboard is active. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In OpenStack Ironic before 26.0.1 and ironic-python-agent before 9.13.1, there is a vulnerability in image processing, in which a crafted image could be used by an authenticated user to exploit. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Credentials to access device configuration were transmitted using an unencrypted protocol. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Credentials to access device configuration information stored unencrypted in flash memory. Rated medium severity (CVSS 4.1), this vulnerability is no authentication required. No vendor patch available.