CVE-2024-12524
📋 TL;DR
The Clinked Client Portal WordPress plugin has a stored XSS vulnerability in its 'clinked-login-button' shortcode. Authenticated attackers with contributor-level access or higher can inject malicious scripts that execute when users view affected pages. All WordPress sites using this plugin up to version 1.9 are vulnerable.
💻 Affected Systems
- Clinked Client Portal 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 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 from visitors.
If Mitigated
With proper user role management and content review, impact is limited to potential defacement of specific pages.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once attacker has contributor privileges.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.9
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Clinked Client Portal. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Remove Contributor Access
allTemporarily remove contributor-level access from untrusted users until patch is applied.
Disable Shortcode
allRemove or disable usage of 'clinked-login-button' shortcode from all posts and pages.
🧯 If You Can't Patch
- Implement strict user role management and review all content from contributors
- Deploy web application firewall with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Clinked Client Portal version 1.9 or earlier.Check Version:
wp plugin list --name=clinked-client-portal --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.9 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode modifications in post/page edits
- Multiple failed login attempts followed by successful contributor login
Network Indicators:
- Suspicious JavaScript payloads in HTTP POST requests to wp-admin/post.php
SIEM Query:
source="wordpress.log" AND ("clinked-login-button" OR "clinked_client_portal") AND ("update" OR "edit" OR "inject")🔗 References
- https://plugins.trac.wordpress.org/browser/clinked-client-portal/trunk/clinked-wordpress-plugin.php#L87
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3229331%40clinked-client-portal&new=3229331%40clinked-client-portal&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/417b9dfe-2571-4816-af55-c7cb7dfa62c6?source=cve
