CVE-2024-9696
📋 TL;DR
The Rescue Shortcodes 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. All WordPress sites using this plugin up to version 2.8 are affected.
💻 Affected Systems
- WordPress Rescue Shortcodes plugin
📦 What is this software?
Rescue Shortcodes by Rescuethemes
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, deface websites, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers with contributor access inject malicious scripts to steal user session cookies or credentials, potentially gaining higher privileges.
If Mitigated
With proper input validation and output escaping, no script injection would occur, limiting impact to data integrity issues at most.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has contributor-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.8
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Rescue Shortcodes plugin
4. Click 'Update Now' if available
5. If no update available, deactivate and remove the plugin
6. Install the latest version from WordPress plugin repository
🔧 Temporary Workarounds
Disable vulnerable shortcode
allRemove or disable the 'rescue_tab' shortcode functionality
Add to theme's functions.php: remove_shortcode('rescue_tab');
Restrict user roles
allTemporarily remove contributor-level posting capabilities
Use WordPress role management plugins or custom code to restrict contributor permissions
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to prevent script execution
- Use web application firewall (WAF) rules to block XSS payloads in POST requests
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Rescue Shortcodes version 2.8 or earlierCheck Version:
wp plugin list --name=rescue-shortcodes --field=versionVerify Fix Applied:
Verify plugin version is higher than 2.8 and test shortcode functionality with sanitized input📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php with rescue_tab parameters
- Multiple failed login attempts followed by successful contributor login
Network Indicators:
- HTTP requests containing script tags or JavaScript in rescue_tab parameters
- Unexpected outbound connections from WordPress server after page visits
SIEM Query:
source="wordpress.log" AND ("rescue_tab" OR "rescue-shortcodes") AND ("script" OR "javascript" OR "onload" OR "onerror")