CVE-2024-57030
📋 TL;DR
Wegia versions below 3.2.0 contain a cross-site scripting vulnerability in the employee documents page that allows attackers to inject malicious scripts via the 'id' parameter. This affects all users of Wegia web applications running vulnerable versions. Attackers can execute arbitrary JavaScript in victims' browsers when they access manipulated URLs.
💻 Affected Systems
- Wegia
📦 What is this software?
Wegia by Wegia
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, session hijacking, credential theft, or malware delivery to authenticated users accessing the vulnerable page.
Likely Case
Session hijacking or credential theft from authenticated users who click malicious links containing the XSS payload.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Exploitation requires crafting malicious URLs with JavaScript payloads in the 'id' parameter and tricking users into visiting them.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.0
Vendor Advisory: https://www.wegia.org/
Restart Required: No
Instructions:
1. Download Wegia version 3.2.0 or later from the official website. 2. Backup current installation and database. 3. Replace files with patched version. 4. Verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize the 'id' parameter before processing.
Modify /geral/documentos_funcionario.php to validate 'id' parameter as numeric only
Output Encoding
allApply proper HTML encoding to user-controlled data before rendering in the document.
Implement htmlspecialchars() or equivalent encoding for 'id' parameter output
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads in URL parameters.
- Deploy Content Security Policy (CSP) headers to restrict script execution sources.
🔍 How to Verify
Check if Vulnerable:
Test by accessing /geral/documentos_funcionario.php?id=<script>alert('XSS')</script> and checking if script executes.Check Version:
Check Wegia version in admin panel or configuration files.Verify Fix Applied:
After patching, test the same payload; script should not execute and input should be properly sanitized.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /geral/documentos_funcionario.php with script tags or JavaScript in 'id' parameter
- Unusual length or character patterns in 'id' parameter values
Network Indicators:
- HTTP requests containing <script> tags or JavaScript functions in URL parameters
SIEM Query:
source="web_logs" AND uri_path="/geral/documentos_funcionario.php" AND (query_string="*<script>*" OR query_string="*javascript:*")