CVE-2024-11810
📋 TL;DR
The PayGreen Payment Gateway WordPress plugin has a reflected cross-site scripting vulnerability in all versions up to 1.0.26. Unauthenticated attackers can inject malicious scripts via the 'message_id' parameter, potentially stealing user credentials or session cookies when victims click specially crafted links. This affects all WordPress sites using the vulnerable plugin version.
💻 Affected Systems
- PayGreen Payment Gateway WordPress Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator credentials, take over WordPress sites, install backdoors, or redirect users to malicious sites for further exploitation.
Likely Case
Attackers steal user session cookies or credentials through phishing links, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper web application firewalls and security headers, malicious scripts are blocked or sanitized, preventing successful exploitation.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but is technically simple with publicly available proof-of-concept examples.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.27 or later
Vendor Advisory: https://wordpress.org/plugins/paygreen-payment-gateway/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find PayGreen Payment Gateway. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.0.27+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock or sanitize malicious script payloads in the message_id parameter
WAF-specific configuration required
Content Security Policy Header
allImplement CSP headers to prevent script execution from untrusted sources
Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to .htaccess or web server configuration
🧯 If You Can't Patch
- Disable or remove the PayGreen Payment Gateway plugin immediately
- Implement strict input validation and output encoding at the application level
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → PayGreen Payment Gateway → Version number. If version is 1.0.26 or lower, you are vulnerable.Check Version:
wp plugin list --name=paygreen-payment-gateway --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.0.27 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests containing script tags in message_id parameter
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with JavaScript payloads in URL parameters
- Suspicious redirects from payment gateway pages
SIEM Query:
source="web_server_logs" AND (message_id CONTAINS "<script>" OR message_id CONTAINS "javascript:")