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 (68862)
Information exposure vulnerability in Korenix JetI/O 6550 affecting firmware version F208 Build:0817. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An unauthenticated remote attacker can influence the communication due to the lack of encryption of sensitive data via a MITM. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
An unauthenticated remote attacker can gain service level privileges through an incomplete cleanup during service restart after a DoS. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
An unauthenticated remote attacker can DoS a control agent due to access of a uninitialized pointer which may prevent or disrupt the charging functionality. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An unauthenticated remote attacker can DoS the control agent due to a out-of-bounds read which may prevent or disrupt the charging functionality. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An improper input validation in the Qualcom plctool allows a local attacker with low privileges to gain root access by changing the ownership of specific files. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An unauthenticated remote attacker can read memory out of bounds due to improper input validation in the MQTT stack. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The f(x) Private Site plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.2.1 via the API. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Improper access control vulnerability exists in the resident process of SKYSEA Client View versions from Ver.11.220 prior to Ver.19.2. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Under certain conditions, Support Web Pages of SAP NetWeaver Process Integration (PI) - versions 7.50, allows an attacker to access information which would otherwise be restricted, causing low impact. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Under certain condition SAP NetWeaver (Enterprise Portal) - version 7.50 allows an attacker to access information which would otherwise be restricted causing low impact on confidentiality of the. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Under certain conditions SAP NetWeaver WSRM - version 7.50, allows an attacker to access information which would otherwise be restricted, causing low impact on Confidentiality with no impact on. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
codeium-chrome is an open source code completion plugin for the chrome web browser. 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.
Postal is an open source SMTP server. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Collabora Online is a collaborative online office suite based on LibreOffice technology. 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.
In wipe_ns_memory of nsmemwipe.c, there is a possible incorrect size calculation 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 plugin_extern_func of , 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 fvp_set_target of fvp.c, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.9), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In ProtocolPsKeepAliveStatusAdapter::getCode() of protocolpsadapter.cpp, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.1), this vulnerability is no authentication required. No vendor patch available.
In sendHciCommand of bluetooth_hci.cc, there is a possible out of bounds read due to a heap buffer overflow. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
In EUTRAN_LCS_DecodeFacilityInformationElement of LPP_LcsManagement.c, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In lpm_req_handler of , there is a possible out of bounds memory access due to a missing bounds check. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In update_freq_data of , 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.
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 tmu_tz_control of tmu.c, 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 acpm_tmu_ipc_handler of tmu_plugin.c, there is a possible out of bounds read due to a missing bounds check. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
In gpu_slc_liveness_update of pixel_gpu_slc.c, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.9), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In SAEMM_DiscloseGuti of SAEMM_RadioMessageCodec.c, there is a possible out of bounds read due to a missing bounds check. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In dumpBatteryDefend of dump_power.cpp, there is a possible out of bounds read due to a heap buffer overflow. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In ss_ProcessRejectComponent of ss_MmConManagement.c, 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 dvfs_plugin_caller of fvp.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 constraint_check of fvp.c, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
OOB read in the TMU plugin that allows for memory disclosure in the power management subsystem of the device. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In the Linux kernel, the following vulnerability has been resolved: riscv: Fix module loading free order Reverse order of kfree calls to resolve use-after-free error. 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.
In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: move mmu notification mechanism inside mm lock Move mmu notification mechanism inside mm lock to prevent race. Rated high severity (CVSS 7.0).
Spinlock corruption in the Linux kernel TCP accept_queue allows a local low-privileged attacker to trigger a race condition between concurrent TCP connection processing and socket shutdown, producing a kernel WARNING from the paravirtualized spinlock subsystem and potentially escalating to kernel memory corruption or privilege escalation. The flaw arises because accept_queue spinlocks are not guaranteed to be initialized exactly once before use, leaving them in a zero-corrupted state when TCP packet reception races against socket disconnection. Despite a CVSS score of 7.8, the EPSS of 0.17% (7th percentile) reflects negligible real-world exploitation interest, and no public exploit or CISA KEV listing exists at time of analysis.
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix global oob in ksmbd_nl_policy Similar to a reported issue (check the commit b33fb5b801c6 ("net: qualcomm: rmnet: fix. 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.
The User Registration WordPress plugin before 2.12 does not prevent users with at least the contributor role from rendering sensitive shortcodes, allowing them to generate, and leak, valid password. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
The Paid Memberships Pro WordPress plugin before 2.12.9 does not prevent user with at least the contributor role from leaking other users' sensitive metadata. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
In getCustomPrinterIcon of PrintManagerService.java, there is a possible way to view other user's images due to a confused deputy. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.
In multiple functions of healthconnect, there is a possible leakage of exercise route data due to a missing permission check. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.
In smp_proc_sec_req of smp_act.cc, there is a possible out of bounds read due to improper input validation. Rated medium severity (CVSS 6.5), this vulnerability is 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.
A vulnerability classified as problematic was found in Musicshelf 1.0/1.1 on Android. Rated medium severity (CVSS 4.2), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.
A vulnerability classified as problematic has been found in Musicshelf 1.0/1.1 on Android. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
If kernel headers need to be extracted, bcc will attempt to load them from a temporary directory. Rated low severity (CVSS 2.5).
If kernel headers need to be extracted, bpftrace will attempt to load them from a temporary directory. Rated low severity (CVSS 2.8).
A vulnerability has been found in keerti1924 Secret-Coder-PHP-Project 1.0 and classified as problematic. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
Hitron CODA-4582 2AHKM-CODA4589 7.2.4.5.1b8 devices allow a remote attacker within Wi-Fi proximity (who has access to the router admin panel) to conduct a DOM-based stored XSS attack that can fetch. Rated medium severity (CVSS 5.2), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
WeasyPrint helps web developers to create PDF documents. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity.
RaspAP (aka raspap-webgui) through 3.0.9 allows remote attackers to read the /etc/passwd file via a crafted request. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Numbas editor before 7.3 mishandles reading of themes and extensions. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Numbas editor before 7.3 mishandles editing of themes and extensions. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Archer Platform 6.x before 6.14 P2 HF2 (6.14.0.2.2) contains a sensitive information disclosure vulnerability. 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.
This issue was addressed through improved state management. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved data protection. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed with improved private data redaction for log entries. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved restrictions. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A lock screen issue was addressed with improved state management. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
This issue was addressed by removing the vulnerable code. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
A privacy issue was addressed with improved handling of temporary files. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
This issue was addressed with improved handling of symlinks. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved state management. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed with improved private data redaction for log entries. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed with improved state management. 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 private data redaction for log entries. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A race condition was addressed with additional validation. Rated medium severity (CVSS 4.7), this vulnerability is no authentication required. No vendor patch available.
This issue was addressed through improved state management. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved checks. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A validation issue was addressed with improved input sanitization. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A logic issue was addressed with improved validation. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
This issue was addressed by removing additional entitlements. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
An out-of-bounds read was addressed with improved input validation. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved UI handling. 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 improved memory handling. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved memory handling. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed by removing the vulnerable code. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed by adding an additional prompt for user consent. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed by not logging contents of text fields. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
This issue was addressed through improved state management. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
The issue was addressed with improved checks. Rated low severity (CVSS 2.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A race condition was addressed with improved state handling. Rated medium severity (CVSS 4.7), this vulnerability is no authentication required. No vendor patch available.
A race condition was addressed with additional validation. Rated medium severity (CVSS 4.7), this vulnerability is no authentication required. No vendor patch available.
This issue was addressed with improved checks. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed with improved handling of temporary files. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A privacy issue was addressed with improved private data redaction for log entries. Rated medium severity (CVSS 5.5), 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.
The issue was addressed with improved handling of caches. 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 private data redaction for log entries. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.