CVE-2025-53930
📋 TL;DR
A stored cross-site scripting (XSS) vulnerability in WeGIA's adicionar_especie.php endpoint allows attackers to inject malicious scripts via the 'especie' parameter. These scripts are stored on the server and automatically execute when users access affected pages, potentially compromising user sessions and data. Organizations using WeGIA versions before 3.4.5 are affected.
💻 Affected Systems
- WeGIA
📦 What is this software?
Wegia by Wegia
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, hijack user sessions, deface websites, or redirect users to malicious sites, potentially leading to complete system compromise.
Likely Case
Session hijacking, credential theft, and unauthorized actions performed on behalf of authenticated users.
If Mitigated
Limited impact with proper input validation and output encoding, though stored XSS remains a persistent threat.
🎯 Exploit Status
Exploitation requires access to the vulnerable endpoint; typical XSS payloads can be used.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.4.5
Vendor Advisory: https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-cxx4-6x69-vg4x
Restart Required: Yes
Instructions:
1. Backup current installation. 2. Download WeGIA version 3.4.5 from official repository. 3. Replace existing files with patched version. 4. Restart web server. 5. Verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize the 'especie' parameter
Modify adicionar_especie.php to include: $especie = htmlspecialchars($_POST['especie'], ENT_QUOTES, 'UTF-8');
WAF Rule
allDeploy web application firewall rules to block XSS payloads in POST requests
Add WAF rule: Detect and block patterns like <script>, javascript:, onerror= in especie parameter
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to restrict script execution
- Disable or restrict access to the adicionar_especie.php endpoint using web server configuration
🔍 How to Verify
Check if Vulnerable:
Test by submitting a payload like <script>alert('XSS')</script> to the especie parameter in adicionar_especie.php and checking if it executes when page loadsCheck Version:
Check WeGIA version in admin panel or review application files for version indicatorsVerify Fix Applied:
Attempt the same XSS payload; it should be properly encoded and not execute📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to adicionar_especie.php with script tags or JavaScript code in parameters
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script> tags or JavaScript in POST body to vulnerable endpoint
SIEM Query:
source="web_server" AND uri="/adicionar_especie.php" AND (body CONTAINS "<script>" OR body CONTAINS "javascript:")