CVE-2025-53821
📋 TL;DR
This CVE describes an Open Redirect vulnerability in WeGIA web management software where attackers can manipulate the 'nextPage' parameter in control.php to redirect users to malicious websites. All WeGIA instances prior to version 3.4.5 are affected, particularly charitable institutions using this Portuguese-language platform.
💻 Affected Systems
- WeGIA
📦 What is this software?
Wegia by Wegia
⚠️ Risk & Real-World Impact
Worst Case
Attackers could redirect users to phishing sites that steal credentials or deliver malware, potentially compromising organizational accounts and systems.
Likely Case
Users could be tricked into visiting malicious sites through legitimate-looking redirects, leading to credential theft or malware infections.
If Mitigated
With proper user awareness training and web filtering, the impact is limited to failed phishing attempts.
🎯 Exploit Status
Open redirect vulnerabilities are commonly exploited in phishing campaigns and require minimal technical skill to weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.4.5
Vendor Advisory: https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-f5c2-jmm6-v2c5
Restart Required: Yes
Instructions:
1. Backup your current WeGIA installation and database. 2. Download version 3.4.5 from the official repository. 3. Replace the existing files with the patched version. 4. Restart the web server service.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock or sanitize requests containing external URLs in the nextPage parameter
WAF-specific configuration required
URL Validation Middleware
allImplement server-side validation to only allow relative URLs or trusted domains in redirects
Custom code implementation required
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to restrict redirect destinations
- Deploy network/web filtering to block known malicious domains and suspicious redirect patterns
🔍 How to Verify
Check if Vulnerable:
Test by accessing control.php with a nextPage parameter containing an external URL (e.g., control.php?nextPage=https://evil.com) and check if redirect occursCheck Version:
Check WeGIA version in admin panel or review source code for version markersVerify Fix Applied:
After patching, repeat the vulnerable test and confirm redirects are blocked or sanitized📡 Detection & Monitoring
Log Indicators:
- HTTP requests to control.php with external URLs in parameters
- Unusual redirect patterns in access logs
Network Indicators:
- Redirects to unexpected external domains from WeGIA application
SIEM Query:
source="web_logs" AND uri="/control.php" AND query="*nextPage=http*"