CVE-2024-11778
📋 TL;DR
This vulnerability allows authenticated WordPress users with contributor-level access or higher to inject malicious scripts into web pages using the CanadaHelps Embedded Donation Form plugin. When other users visit pages containing these injected scripts, the scripts execute in their browsers. All WordPress sites using this plugin version 1.0.0 or earlier are affected.
💻 Affected Systems
- CanadaHelps Embedded Donation Form WordPress 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 session cookies, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users, potentially leading to complete site compromise.
Likely Case
Attackers with contributor access inject malicious JavaScript that steals admin cookies or redirects users to phishing sites, potentially compromising admin accounts.
If Mitigated
With proper user access controls and content security policies, impact is limited to defacement or minor data leakage from users visiting affected pages.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.0.0 (check WordPress plugin repository for latest)
Vendor Advisory: https://wordpress.org/plugins/embedded-cdn/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'CanadaHelps Embedded Donation Form'. 4. Click 'Update Now' if available, or delete and reinstall latest version. 5. Verify plugin is updated to version after 1.0.0.
🔧 Temporary Workarounds
Remove vulnerable shortcode usage
allTemporarily remove or disable the 'embedcdn' shortcode from all posts and pages
Search WordPress database for '[embedcdn' pattern and remove or replace
Restrict user capabilities
allTemporarily remove contributor-level editing capabilities from untrusted users
Use WordPress role editor plugins or custom code to modify capabilities
🧯 If You Can't Patch
- Disable or remove the CanadaHelps Embedded Donation Form plugin entirely
- Implement strict Content Security Policy (CSP) headers to block inline script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for CanadaHelps Embedded Donation Form version 1.0.0 or earlierCheck Version:
wp plugin list --name='embedded-cdn' --field=version (if WP-CLI installed)Verify Fix Applied:
Verify plugin version is greater than 1.0.0 and test shortcode functionality📡 Detection & Monitoring
Log Indicators:
- Unusual post/page edits by contributor-level users
- Multiple shortcode modifications in short timeframe
Network Indicators:
- Unexpected JavaScript loading from WordPress pages
- Suspicious outbound connections from site visitors
SIEM Query:
source="wordpress.log" AND ("[embedcdn" OR "embedded-cdn") AND ("edit" OR "update")