CVE-2025-4405
📋 TL;DR
The Hot Random Image WordPress plugin has a stored XSS vulnerability in all versions up to 1.9.2. Authenticated attackers with Contributor-level access or higher can inject malicious scripts via the 'link' parameter, which execute when users view affected pages. This affects all WordPress sites using vulnerable versions of this plugin.
💻 Affected Systems
- Hot Random Image WordPress Plugin
📦 What is this software?
Hot Random Image by Hot Themes
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal admin credentials, redirect users to malicious sites, deface websites, or install backdoors leading to complete site compromise.
Likely Case
Attackers with contributor access inject malicious scripts to steal user session cookies or redirect visitors to phishing pages.
If Mitigated
With proper user role management and security plugins, impact is limited to potential defacement of specific pages.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.9.3 or later
Vendor Advisory: https://wordpress.org/plugins/hot-random-image/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Hot Random Image' plugin. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.9.3+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the Hot Random Image plugin until patched
Restrict User Roles
allLimit Contributor and higher roles to trusted users only
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in 'link' parameter
- Use security plugins like Wordfence that include XSS protection
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Hot Random Image version 1.9.2 or earlier
Check Version:
wp plugin list --name='hot-random-image' --field=version
Verify Fix Applied:
Verify plugin version is 1.9.3 or higher in WordPress admin panel
📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php with 'link' parameter containing script tags
- Multiple failed login attempts followed by successful contributor login
Network Indicators:
- Outbound connections to suspicious domains from WordPress server after page views
SIEM Query:
source="wordpress.log" AND ("hot_random_image" OR "link parameter") AND ("script" OR "javascript:" OR "onload=")
🔗 References
- https://plugins.trac.wordpress.org/browser/hot-random-image/tags/1.9.2/hot_random_image.php#L43
- https://plugins.trac.wordpress.org/changeset/3298033/
- https://wordpress.org/plugins/hot-random-image/#developers
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c5cff14e-e891-4569-afd8-2885ebb26401?source=cve