CVE-2023-51515
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Undsgn Uncode Core WordPress plugin that allows attackers to escalate privileges. Attackers can exploit this to gain administrative access to WordPress sites. All WordPress installations using Uncode Core versions up to 2.8.8 are affected.
💻 Affected Systems
- Undsgn Uncode Core 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
Complete site takeover where attackers gain full administrative control, can install backdoors, deface the site, steal sensitive data, or use the site for further attacks.
Likely Case
Attackers gain administrative privileges and compromise the WordPress installation, potentially leading to data theft, malware injection, or site defacement.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized privilege changes that can be detected and rolled back.
🎯 Exploit Status
While no public PoC is confirmed, privilege escalation vulnerabilities in WordPress plugins are frequently weaponized. Attackers need some level of access to exploit this vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.8.9 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/uncode-core/wordpress-uncode-core-plugin-2-8-8-privilege-escalation-vulnerability
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Uncode Core plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 2.8.9+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Uncode Core Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate uncode-core
Restrict Admin Access
linuxLimit admin panel access to trusted IP addresses only
# Add to .htaccess for Apache: Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
# Add to nginx config: allow 192.168.1.0/24; deny all;
🧯 If You Can't Patch
- Disable the Uncode Core plugin immediately
- Implement strict access controls and monitor for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Uncode Core version. If version is 2.8.8 or lower, you are vulnerable.Check Version:
wp plugin get uncode-core --field=versionVerify Fix Applied:
Verify Uncode Core plugin version is 2.8.9 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unexpected user role changes in WordPress logs
- Admin user creation from non-admin accounts
- Unusual plugin activation/deactivation events
Network Indicators:
- Unusual admin panel access patterns
- Multiple failed login attempts followed by successful admin access
SIEM Query:
source="wordpress" (event="user_role_change" OR event="user_created") AND user_role="administrator"