CVE-2024-3025: Mintplexlabs AnythingLLM Path Traversal

CVE-2024-3025 Overview

mintplex-labs/anything-llm is vulnerable to path traversal attacks due to insufficient validation of user-supplied input in the logo filename functionality. Attackers can exploit this vulnerability by manipulating the logo filename to reference files outside of the restricted directory. This can lead to unauthorized reading or deletion of files by utilizing the /api/system/upload-logo and /api/system/logo endpoints. The issue stems from the lack of filtering or validation on the logo filename, allowing attackers to target sensitive files such as the application's database.

Critical Impact

This path traversal vulnerability allows authenticated attackers to read or delete arbitrary files on the server, potentially compromising the entire application database and sensitive configuration files.

Affected Products

• Mintplexlabs Anythingllm (all versions prior to patch)

Discovery Timeline

• 2024-04-10 - CVE CVE-2024-3025 published to NVD
• 2025-07-09 - Last updated in NVD database

Technical Details for CVE-2024-3025

Vulnerability Analysis

This vulnerability is classified as CWE-23 (Relative Path Traversal), a critical class of input validation flaws that occurs when an application uses external input to construct pathnames without proper sanitization. In the case of AnythingLLM, the application fails to validate or filter the logo filename parameter, enabling attackers to traverse outside the intended directory structure using sequences like ../ to access arbitrary files on the system.

The vulnerability affects two API endpoints: /api/system/upload-logo for uploading files and /api/system/logo for retrieving them. An authenticated attacker can craft malicious requests containing path traversal sequences in the filename parameter, bypassing directory restrictions. This exposes the application to both unauthorized file read operations (information disclosure) and file deletion operations (integrity impact), with the application's SQLite database being a particularly high-value target.

Root Cause

The root cause lies in the insufficient validation of user-supplied input in the logo filename functionality. The application directly uses the filename provided by the user without sanitizing or validating it against directory traversal patterns. This allows malicious input containing relative path components (such as ../) to escape the intended storage directory and access arbitrary locations on the filesystem.

Attack Vector

The attack is network-accessible and requires low privileges (authenticated user). An attacker with valid credentials can send crafted HTTP requests to the vulnerable endpoints, manipulating the filename parameter to include path traversal sequences. For example, an attacker could reference ../../../storage/anythingllm.db to target the application database.

The exploitation involves two main attack scenarios:

1. File Read: Using the /api/system/logo endpoint with a traversal payload to read sensitive files
2. File Deletion: Using the /api/system/upload-logo endpoint functionality to overwrite or delete targeted files

The attack requires no user interaction and the scope is changed, meaning the vulnerability can impact resources beyond the vulnerable component's security scope.

Detection Methods for CVE-2024-3025

Indicators of Compromise

• HTTP requests to /api/system/upload-logo or /api/system/logo containing ../ or encoded variants (%2e%2e%2f) in filename parameters
• Unexpected access patterns to sensitive files like anythingllm.db or system configuration files
• Anomalous file read or deletion operations originating from the AnythingLLM application process
• Log entries showing requests with unusual filename patterns targeting paths outside the logo storage directory

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests to the affected endpoints
• Configure intrusion detection systems to alert on directory traversal sequences in API parameters
• Monitor file access logs for unusual read or delete operations on sensitive application files
• Enable detailed logging on the AnythingLLM application to capture all requests to system API endpoints

Monitoring Recommendations

• Set up real-time alerts for requests containing path traversal patterns targeting /api/system/upload-logo and /api/system/logo
• Monitor file integrity of critical application files including the database and configuration files
• Track authentication events and correlate with file access anomalies to identify potential exploitation attempts
• Review access logs regularly for patterns indicating reconnaissance or exploitation activity

How to Mitigate CVE-2024-3025

Immediate Actions Required

• Update mintplex-labs/anything-llm to the patched version immediately
• Review access logs for any evidence of prior exploitation targeting the vulnerable endpoints
• Audit file system for unauthorized modifications or deletions, particularly to the application database
• Restrict network access to the affected API endpoints until patching is complete

Patch Information

The vendor has released a security patch addressing this vulnerability. The fix is available via GitHub Commit 7de23dbb2da932fbfb39f56d981784d3702cf5ce. This commit implements proper input validation and sanitization for the logo filename parameter, preventing path traversal attacks. Additional details about the vulnerability can be found at the Huntr Bounty Listing.

Workarounds

• Implement a reverse proxy or WAF rule to block requests containing path traversal patterns to the /api/system/upload-logo and /api/system/logo endpoints
• Temporarily disable or restrict access to the logo upload and retrieval functionality until the patch is applied
• Enforce strict network segmentation to limit which users and systems can access the AnythingLLM API
• Apply file system permissions to restrict the application's access to only necessary directories