CVE-2025-39450
📋 TL;DR
This DOM-based Cross-Site Scripting (XSS) vulnerability in the Crocoblock JetTabs WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users. All WordPress sites using vulnerable versions of JetTabs are affected.
💻 Affected Systems
- Crocoblock JetTabs 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, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malware distribution sites.
Likely Case
Attackers steal user session cookies, perform actions as authenticated users, or redirect users to phishing pages to steal credentials.
If Mitigated
With proper Content Security Policy (CSP) headers and input validation, impact is limited to the specific vulnerable component only.
🎯 Exploit Status
XSS vulnerabilities are commonly weaponized. The DOM-based nature means exploitation occurs in the victim's browser without server-side payload processing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.8 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/jet-tabs/vulnerability/wordpress-jettabs-plugin-2-2-7-cross-site-scripting-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find JetTabs plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 2.2.8+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable JetTabs Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate jet-tabs
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "script-src 'self'";
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Disable user input fields that trigger the vulnerable DOM manipulation
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins → JetTabs version numberCheck Version:
wp plugin get jet-tabs --field=versionVerify Fix Applied:
Verify JetTabs version is 2.2.8 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in URL parameters
- Multiple requests with script tags or JavaScript events in query strings
- Unexpected redirects from JetTabs pages
Network Indicators:
- HTTP requests containing <script> tags or JavaScript event handlers in parameters
- Outbound connections to suspicious domains following JetTabs page visits
SIEM Query:
source="*access.log*" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=") AND "jet-tabs"