CVE-2025-4405

4.9 MEDIUM

📋 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

Products:
  • Hot Random Image WordPress Plugin
Versions: All versions up to and including 1.9.2
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the plugin enabled. Contributor-level access or higher needed for exploitation.

📦 What is this software?

⚠️ 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.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

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

all

Temporarily deactivate the Hot Random Image plugin until patched

Restrict User Roles

all

Limit 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

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