CVE-2024-13582
📋 TL;DR
This stored XSS vulnerability in the Simple Pricing Tables For WPBakery Page Builder WordPress plugin allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. The scripts execute whenever users view the compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using this plugin up to version 1.0 are affected.
💻 Affected Systems
- Simple Pricing Tables For WPBakery Page Builder (Formerly Visual Composer) WordPress plugin
📦 What is this software?
Pricing Tables by Webdevocean
⚠️ 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 accounts inject malicious scripts to steal user session cookies or credentials, potentially escalating privileges.
If Mitigated
With proper user access controls and content security policies, impact is limited to isolated script execution without data exfiltration.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once an attacker has contributor-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.0 (check WordPress plugin repository for latest)
Vendor Advisory: https://plugins.trac.wordpress.org/browser/simple-pricing-tables-vc-extension
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Simple Pricing Tables For WPBakery Page Builder'. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete plugin immediately.
🔧 Temporary Workarounds
Remove Contributor Access
allTemporarily remove contributor-level user roles or restrict their permissions until patch is applied.
Content Security Policy
linuxImplement strict CSP headers to block inline script execution and restrict script 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
- Deactivate and remove the Simple Pricing Tables For WPBakery Page Builder plugin immediately
- Implement strict user access controls and audit all contributor-level accounts for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Simple Pricing Tables For WPBakery Page Builder'. If version is 1.0 or lower, you are vulnerable.Check Version:
wp plugin list --name='simple-pricing-tables-vc-extension' --field=versionVerify Fix Applied:
After update, verify plugin version is higher than 1.0 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode modifications in post/page revisions
- Multiple failed login attempts followed by successful contributor login
- Suspicious script tags in post content containing 'wdo_simple_pricing_table_free'
Network Indicators:
- Unexpected external script loads from WordPress pages
- Suspicious outbound connections after page views
SIEM Query:
source="wordpress.log" AND ("wdo_simple_pricing_table_free" OR "contributor" AND "post_update")