CVE-2024-11825
📋 TL;DR
The Broadstreet WordPress plugin has a stored XSS vulnerability in the 'zone' parameter that allows authenticated attackers with Contributor access or higher to inject malicious scripts. These scripts execute when users view compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using Broadstreet plugin versions up to 1.50.3 are affected.
💻 Affected Systems
- Broadstreet 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 credentials, take over the WordPress site, deface pages, or redirect visitors to malicious sites, potentially leading to complete site compromise and data theft.
Likely Case
Attackers with contributor access inject malicious scripts to steal session cookies or credentials from users viewing affected pages, potentially gaining higher privileges or accessing sensitive data.
If Mitigated
With proper user access controls and content security policies, impact is limited to the specific compromised pages, preventing lateral movement or credential theft from protected areas.
🎯 Exploit Status
Exploitation requires authenticated access (Contributor role minimum). The vulnerability is in a publicly accessible parameter with insufficient sanitization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.50.4 or later
Vendor Advisory: https://wordpress.org/plugins/broadstreet/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Broadstreet plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.50.4+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Remove Contributor Role Access
allTemporarily restrict Contributor role access or remove unnecessary Contributor users until patch is applied.
Implement Content Security Policy
allAdd CSP headers to prevent script execution from unauthorized sources.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Disable the Broadstreet plugin completely until patched.
- Implement strict user access controls and monitor for suspicious Contributor activity.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins → Broadstreet version. If version is 1.50.3 or lower, you are vulnerable.Check Version:
wp plugin list --name=broadstreet --field=version (if WP-CLI installed) or check WordPress admin interfaceVerify Fix Applied:
After updating, verify Broadstreet plugin version shows 1.50.4 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Broadstreet endpoints with script tags in parameters
- Multiple failed login attempts followed by successful Contributor login
- Unexpected modifications to pages/posts by Contributor users
Network Indicators:
- Outbound connections to suspicious domains from your WordPress site
- Unexpected script loads in page responses
SIEM Query:
source="wordpress.log" AND ("broadstreet" AND ("zone=" OR "script" OR "<script>"))