CVE-2025-49938
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the CrocoBlock JetEngine WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using JetEngine versions up to and including 3.7.3 are affected. The vulnerability occurs due to improper input sanitization during web page generation.
💻 Affected Systems
- CrocoBlock JetEngine 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 could steal administrator session cookies, perform actions as authenticated users, deface websites, or redirect users to malicious sites, potentially leading to complete site compromise.
Likely Case
Attackers inject malicious JavaScript that steals user session cookies or credentials when users visit compromised pages, leading to account takeover.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing any impact.
🎯 Exploit Status
Exploitation requires the ability to inject malicious input into the affected plugin components. The exact attack vector is not publicly documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.7.4 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find JetEngine and click 'Update Now'. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Disable JetEngine Plugin
WordPressTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate jet-engine
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or use WordPress CSP plugin
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict plugin access to trusted users only and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for JetEngine version. If version is 3.7.3 or lower, you are vulnerable.Check Version:
wp plugin get jet-engine --field=versionVerify Fix Applied:
After updating, verify JetEngine version shows 3.7.4 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to JetEngine endpoints with script tags
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing JavaScript payloads to JetEngine endpoints
- Unexpected outbound connections after visiting JetEngine pages
SIEM Query:
source="web_server" AND ("jet-engine" OR "jetengine") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")