CVE-2025-54014

9.8 CRITICAL

📋 TL;DR

This CVE describes a PHP object injection vulnerability in the MediCenter WordPress theme that allows attackers to execute arbitrary code through deserialization of untrusted data. It affects all WordPress sites using MediCenter theme versions up to 15.1. Attackers can exploit this to gain full control of affected websites.

💻 Affected Systems

Products:
  • QuanticaLabs MediCenter - Health Medical Clinic WordPress Theme
Versions: All versions up to and including 15.1
Operating Systems: Any OS running WordPress (Linux, Windows, etc.)
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations using the MediCenter theme. Requires PHP environment with unserialize() function available.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete website compromise, data theft, malware deployment, and server takeover.

🟠

Likely Case

Website defacement, backdoor installation, credential theft, and unauthorized administrative access.

🟢

If Mitigated

Limited impact with proper input validation and security controls, potentially only causing denial of service.

🌐 Internet-Facing: HIGH - WordPress themes are typically internet-facing and accessible to any visitor.
🏢 Internal Only: LOW - WordPress themes are designed for public websites, not internal applications.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

PHP object injection vulnerabilities are commonly exploited. The Patchstack reference suggests exploit details are publicly available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 15.1 (check for updates from vendor)

Vendor Advisory: https://patchstack.com/database/wordpress/theme/medicenter/vulnerability/wordpress-medicenter-health-medical-clinic-15-1-php-object-injection-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check for MediCenter theme updates. 4. Update to latest version. 5. Clear any caching plugins/CDN caches.

🔧 Temporary Workarounds

Disable vulnerable theme

all

Switch to a different WordPress theme temporarily

wp theme activate twentytwentyfour
wp theme deactivate medicenter

Input validation filter

all

Add custom filter to sanitize serialized data

Add to functions.php: add_filter('pre_deserialize', 'sanitize_serialized_input');

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) rules to block serialized object payloads
  • Restrict access to vulnerable endpoints using .htaccess or nginx rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for MediCenter version 15.1 or earlier

Check Version:

wp theme list --name=medicenter --field=version

Verify Fix Applied:

Verify MediCenter theme version is higher than 15.1 in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests with serialized data
  • PHP unserialize() errors in logs
  • Unexpected file creation/modification

Network Indicators:

  • HTTP requests containing serialized PHP objects (O:)
  • Requests to theme-specific endpoints with unusual parameters

SIEM Query:

source="web_logs" AND (uri="*medicenter*" OR user_agent="*medicenter*") AND (data="*O:*" OR data="*s:*")

🔗 References

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