CVE-2025-0746
📋 TL;DR
A reflected cross-site scripting vulnerability in EmbedAI versions 2.1 and below allows authenticated attackers to inject malicious JavaScript via crafted URLs. When users click these malicious links, the script executes in their browser context. This affects all deployments running vulnerable EmbedAI versions.
💻 Affected Systems
- EmbedAI
📦 What is this software?
Embedai by Thesamur
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, redirect to phishing sites, or install malware through drive-by downloads.
Likely Case
Session hijacking leading to unauthorized access, credential theft, or defacement of user interfaces.
If Mitigated
Limited impact if proper input validation and output encoding are implemented, though some risk remains from social engineering.
🎯 Exploit Status
Exploitation requires authentication but is straightforward once authenticated. The vulnerability is in a predictable endpoint pattern.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2 or later
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-embedai
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download EmbedAI version 2.2 or later from official sources. 3. Follow vendor upgrade instructions. 4. Restart EmbedAI services. 5. Verify the fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize user input in the /embedai/users/show/ endpoint
# Add input validation in your application code
# Example: Validate and sanitize the parameter before processing
Web Application Firewall Rule
allConfigure WAF to block requests containing script tags or JavaScript patterns in the URL path
# ModSecurity rule example
SecRule REQUEST_URI "@rx /embedai/users/show/.*<script" "id:1001,phase:1,deny,status:403"
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Disable or restrict access to the /embedai/users/show/ endpoint if not required
🔍 How to Verify
Check if Vulnerable:
Test by accessing /embedai/users/show/<script>alert('XSS')</script> endpoint and checking if script executesCheck Version:
Check EmbedAI version in admin panel or configuration filesVerify Fix Applied:
After patching, test the same endpoint and verify script does not execute and input is properly sanitized📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /embedai/users/show/ containing script tags or JavaScript patterns
- Unusual parameter values in user show requests
Network Indicators:
- URLs containing script tags or encoded JavaScript in the path parameter
- Requests with suspicious characters in the endpoint path
SIEM Query:
source="web_server" AND uri_path="/embedai/users/show/*" AND (uri_path CONTAINS "<script" OR uri_path CONTAINS "javascript:")