CVE-2025-54012
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the Welcart e-Commerce WordPress plugin. Successful exploitation could lead to remote code execution or data manipulation. All WordPress sites using Welcart e-Commerce versions up to 2.11.16 are affected.
💻 Affected Systems
- Welcart e-Commerce (USC-E Shop 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
Remote code execution leading to complete site compromise, data theft, or server takeover.
Likely Case
Arbitrary file upload, data manipulation, or privilege escalation within the WordPress environment.
If Mitigated
Limited impact with proper input validation and security controls in place.
🎯 Exploit Status
Exploitation requires understanding of PHP object injection techniques and likely requires some level of access to trigger deserialization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.11.17 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Welcart e-Commerce. 4. Click 'Update Now' if available. 5. Alternatively, download version 2.11.17+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Welcart Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate usces
Restrict Plugin Access
allUse web application firewall to block access to Welcart endpoints.
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user-supplied data
- Deploy web application firewall with deserialization attack detection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Welcart e-Commerce version number.Check Version:
wp plugin get usces --field=versionVerify Fix Applied:
Verify plugin version is 2.11.17 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Welcart endpoints
- PHP error logs showing unserialize() warnings
- Unexpected file uploads or modifications
Network Indicators:
- HTTP requests containing serialized PHP objects
- Traffic to Welcart-specific endpoints with unusual payloads
SIEM Query:
source="web_logs" AND (uri="*welcart*" OR uri="*usces*") AND (method="POST" OR method="PUT") AND size>1000