CVE-2025-49934
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in CrocoBlock's JetBlocks For Elementor WordPress plugin allows attackers to inject malicious scripts into web pages. When users view compromised pages, the scripts execute in their browsers, potentially stealing session cookies or performing actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- CrocoBlock JetBlocks For Elementor
⚠️ 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, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session data, perform actions as authenticated users, or display phishing content.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Exploitation requires ability to inject malicious input into vulnerable fields, which typically requires some level of access or user interaction.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.3.18
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'JetBlocks For Elementor'. 4. Click 'Update Now' if available, or download latest version from WordPress repository. 5. Activate updated plugin.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
WordPressDisable the vulnerable plugin until patched version is available
wp plugin deactivate jet-blocks
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict user input in JetBlocks components to trusted sources only
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → JetBlocks For Elementor version numberCheck Version:
wp plugin get jet-blocks --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.3.18📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests containing script tags to JetBlocks endpoints
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Outbound connections to suspicious domains from your WordPress site
- Unexpected JavaScript execution in user browsers
SIEM Query:
source="web_server" AND ("jet-blocks" OR "jetblocks") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")