CVE-2025-31549
📋 TL;DR
This DOM-based Cross-Site Scripting (XSS) vulnerability in the Agency Dominion Inc. Fusion WordPress plugin allows attackers to inject malicious scripts that execute in users' browsers when they visit compromised pages. The vulnerability affects all versions up to 1.6.3 of the Fusion plugin. WordPress sites using vulnerable versions of this plugin are at risk.
💻 Affected Systems
- Agency Dominion Inc. Fusion 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, redirect users to malicious sites, perform actions on behalf of authenticated users, or deface websites.
Likely Case
Attackers inject malicious scripts to steal user session cookies or credentials, potentially leading to account compromise.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution.
🎯 Exploit Status
DOM-based XSS typically requires user interaction but can be exploited via crafted links or forms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.6.4 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/fusion/vulnerability/wordpress-fusion-plugin-1-6-3-cross-site-scripting-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Fusion' plugin. 4. Click 'Update Now' if update available. 5. If no update available, download version 1.6.4+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Fusion Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate fusion
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Disable user input fields that could be vectors for this vulnerability
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Fusion version. If version is 1.6.3 or earlier, you are vulnerable.Check Version:
wp plugin get fusion --field=versionVerify Fix Applied:
After updating, verify Fusion plugin version is 1.6.4 or later in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual POST/GET requests with script tags or JavaScript in parameters
- Multiple failed login attempts following suspicious requests
Network Indicators:
- HTTP requests containing <script> tags or JavaScript in query parameters
- Unexpected redirects to external domains
SIEM Query:
source="web_server" AND (uri="*<script>*" OR uri="*javascript:*" OR uri="*onload=*" OR uri="*onerror=*")