CVE-2025-64633
📋 TL;DR
This is a cross-site scripting (XSS) vulnerability in the Norebro Extra WordPress plugin that allows attackers to inject malicious scripts into web pages. The vulnerability affects all WordPress sites using Norebro Extra plugin versions up to and including 1.6.8. Attackers can execute arbitrary JavaScript in victims' browsers when they view compromised pages.
💻 Affected Systems
- colabrio Norebro Extra 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 session cookies, perform actions as authenticated users, redirect users to malicious sites, or deface websites by injecting persistent malicious content.
Likely Case
Attackers inject malicious scripts to steal user session cookies or credentials, potentially compromising user accounts with limited privileges.
If Mitigated
With proper input validation and output encoding, the impact is limited to minor content manipulation without significant security consequences.
🎯 Exploit Status
Basic XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, similar WordPress plugin XSS vulnerabilities are frequently weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.6.8
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Norebro Extra' plugin. 4. Click 'Update Now' if update is available. 5. If no update appears, manually download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Norebro Extra Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate norebro-extra
Implement WAF Rules
linuxAdd web application firewall rules to block XSS payloads
ModSecurity: SecRule ARGS "<script" "id:1001,phase:2,deny,status:403,msg:'XSS Attack Detected'"
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Deploy a web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Norebro Extra versionCheck Version:
wp plugin get norebro-extra --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.6.8 in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests containing script tags to WordPress endpoints
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with suspicious script payloads in parameters
- Unusual outbound connections from WordPress server after page views
SIEM Query:
source="web_server" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri_path="/wp-admin/admin-ajax.php"