CVE-2025-58965
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Fusion Page Builder Gallery extension allows attackers to inject malicious scripts into web pages. When users view compromised pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. WordPress sites using this plugin version 1.7.6 or earlier are affected.
💻 Affected Systems
- Fusion Page Builder : Extension – Gallery
⚠️ 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 compromising the entire web server if combined with other vulnerabilities.
Likely Case
Attackers inject malicious scripts that steal user session cookies or credentials, allowing them to impersonate users or gain unauthorized access to the WordPress dashboard.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers, preventing exploitation.
🎯 Exploit Status
Exploitation requires the ability to inject malicious scripts into gallery content, which typically requires some level of access to the WordPress admin interface or a vulnerable input field.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.7.6
Restart Required: No
Instructions:
1. Log into WordPress admin dashboard. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Fusion Page Builder : Extension – Gallery'. 4. Click 'Update Now' if available. 5. If no update is available, deactivate and delete the plugin, then install the latest version from the WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until a patch can be applied.
wp plugin deactivate fusion-extension-gallery
Implement Content Security Policy
allAdd a Content Security Policy header to restrict script execution sources.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to WordPress functions.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Restrict access to WordPress admin interface using IP whitelisting or VPN.
- Implement web application firewall (WAF) rules to block XSS payloads in gallery content.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin dashboard > Plugins > Installed Plugins for 'Fusion Page Builder : Extension – Gallery' version 1.7.6 or earlier.Check Version:
wp plugin get fusion-extension-gallery --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.7.6 in WordPress admin dashboard > Plugins > Installed Plugins.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to gallery-related endpoints with script tags or JavaScript code in parameters.
- Multiple failed login attempts followed by successful admin login and gallery content modifications.
Network Indicators:
- HTTP requests containing malicious script payloads in gallery content parameters.
- Outbound connections to suspicious domains from your web server after gallery page views.
SIEM Query:
source="web_server_logs" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "gallery") AND (request_body CONTAINS "<script>" OR request_body CONTAINS "javascript:")