CVE-2024-13459
📋 TL;DR
The FuseDesk WordPress plugin has a stored XSS vulnerability that allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. These scripts execute whenever users visit the compromised pages, potentially stealing credentials or performing unauthorized actions. This affects all WordPress sites using FuseDesk plugin versions up to 6.6.1.
💻 Affected Systems
- FuseDesk WordPress Plugin
📦 What is this software?
Fusedesk by Jeremyshapiro
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, take over the WordPress site, install backdoors, deface the website, or redirect visitors to malicious sites.
Likely Case
Attackers with contributor accounts inject malicious scripts to steal user session cookies, perform actions as logged-in users, or display phishing content.
If Mitigated
With proper user access controls and content security policies, impact is limited to the specific compromised pages and affected user sessions.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has contributor-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.6.2 or later
Vendor Advisory: https://wordpress.org/plugins/fusedesk/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find FuseDesk and click 'Update Now'. 4. Verify version is 6.6.2 or higher.
🔧 Temporary Workarounds
Disable FuseDesk Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate fusedesk
Restrict User Roles
allRemove contributor-level access from untrusted users and implement least privilege
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Regularly audit user accounts and remove unnecessary contributor-level permissions
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → FuseDesk version. If version is 6.6.1 or lower, you are vulnerable.Check Version:
wp plugin get fusedesk --field=versionVerify Fix Applied:
After updating, verify FuseDesk version shows 6.6.2 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode usage in post/page content
- Multiple failed login attempts followed by contributor account access
- Suspicious script tags in post/page revisions
Network Indicators:
- Unexpected JavaScript loading from WordPress pages
- Suspicious outbound connections from admin pages
SIEM Query:
source="wordpress" AND (event="post_updated" OR event="plugin_updated") AND plugin="fusedesk"