CVE-2024-11749
📋 TL;DR
The App Embed WordPress plugin has a stored cross-site scripting vulnerability that allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. These scripts execute whenever users view the compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using App Embed plugin versions up to 2.3.2 are affected.
💻 Affected Systems
- WordPress App Embed plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, deface websites, redirect users to malicious sites, or perform actions as authenticated users, potentially leading to complete site compromise.
Likely Case
Attackers inject malicious scripts to steal user session cookies or credentials, perform unauthorized actions, or display malicious content to visitors.
If Mitigated
With proper user role management and content review processes, impact is limited to potential defacement or minor content manipulation.
🎯 Exploit Status
Exploitation requires authenticated access with at least contributor privileges. The vulnerability is in the 'appizy' shortcode attribute handling.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'App Embed' plugin. 4. Click 'Update Now' if available. 5. Alternatively, download version 2.3.3+ from WordPress plugin repository and manually update.
🔧 Temporary Workarounds
Disable App Embed plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate appizy-app-embed
Restrict user roles
allLimit contributor-level access to trusted users only
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in shortcode attributes
- Review and audit all posts/pages created by users with contributor access or higher for suspicious content
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for App Embed version. If version is 2.3.2 or lower, you are vulnerable.Check Version:
wp plugin get appizy-app-embed --field=versionVerify Fix Applied:
After updating, verify App Embed plugin shows version 2.3.3 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode usage in post/page edits
- Multiple failed login attempts followed by successful contributor login
- Posts/pages with unusual attribute values in appizy shortcodes
Network Indicators:
- Outbound connections to suspicious domains from your WordPress site
- Unexpected JavaScript loading from your domain
SIEM Query:
source="wordpress.log" AND ("appizy" OR "shortcode") AND ("script" OR "javascript" OR "onerror" OR "onload")