CVE-2025-66057
📋 TL;DR
This DOM-based Cross-Site Scripting (XSS) vulnerability in the Bold Page Builder WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, it can enable session hijacking, credential theft, or website defacement. WordPress sites using Bold Page Builder version 5.5.2 or earlier are affected.
💻 Affected Systems
- boldthemes Bold Page Builder
⚠️ 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, install backdoors, or redirect visitors to malicious sites, potentially compromising the entire web server.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, perform actions as authenticated users, or deface website content.
If Mitigated
With proper Content Security Policy (CSP) headers and input validation, the attack surface is reduced, though the vulnerability remains present.
🎯 Exploit Status
DOM-based XSS typically requires user interaction (clicking a malicious link) but can be exploited without authentication. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: >5.5.2
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Bold Page Builder' and click 'Update Now'. 4. Verify the plugin version is above 5.5.2.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources and mitigate XSS impact
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or configure via web server settings
Disable Plugin
linuxTemporarily disable Bold Page Builder until patched
wp plugin deactivate bold-page-builder
🧯 If You Can't Patch
- Implement strict Content Security Policy headers to limit script execution
- Use web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Bold Page Builder version. If version is 5.5.2 or lower, you are vulnerable.Check Version:
wp plugin get bold-page-builder --field=versionVerify Fix Applied:
After updating, verify the plugin version shows higher than 5.5.2 in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in HTTP requests
- Multiple requests with script tags or event handlers
- Requests to suspicious external domains from your site
Network Indicators:
- Outbound connections to unknown domains following page loads
- Unexpected script loads from external sources
SIEM Query:
source="web_server_logs" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri="*bold-page-builder*"