CVE-2025-4317

8.8 HIGH

📋 TL;DR

The TheGem WordPress theme has an arbitrary file upload vulnerability in all versions up to 5.10.3. Authenticated attackers with Subscriber-level access can upload malicious files, potentially leading to remote code execution. This affects all WordPress sites using vulnerable versions of TheGem theme.

💻 Affected Systems

Products:
  • TheGem WordPress Theme
Versions: All versions up to and including 5.10.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with TheGem theme active and at least one Subscriber-level user account.

⚠️ 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

Full server compromise via remote code execution, data theft, site defacement, and malware distribution.

🟠

Likely Case

Website defacement, backdoor installation, credential theft, and unauthorized access to sensitive data.

🟢

If Mitigated

Limited to file uploads without execution if proper file permissions and security controls are in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access but only at Subscriber level, which is the lowest WordPress user role.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.10.4 or later

Vendor Advisory: https://codex-themes.com/thegem/changelog.html

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check TheGem theme version. 4. If below 5.10.4, update immediately via theme update or manual upload. 5. Verify update completed successfully.

🔧 Temporary Workarounds

Disable TheGem Theme

all

Switch to a different WordPress theme temporarily until patched.

Restrict File Uploads

linux

Use .htaccess or web server configuration to block PHP file execution in upload directories.

<FilesMatch "\.(php|php5|php7|phtml|phar)$">
    Order Allow,Deny
    Deny from all
</FilesMatch>

🧯 If You Can't Patch

  • Remove Subscriber-level user accounts or restrict registration
  • Implement web application firewall (WAF) rules to block file upload attempts to vulnerable endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes > TheGem details for version number.

Check Version:

wp theme list --field=name,version --path=/path/to/wordpress

Verify Fix Applied:

Confirm TheGem theme version is 5.10.4 or higher in WordPress admin.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to wp-content/uploads/thegem-logos/
  • POST requests to admin-ajax.php with file upload parameters
  • PHP file execution from upload directories

Network Indicators:

  • HTTP POST requests containing file uploads to WordPress admin endpoints
  • Unusual outbound connections from web server

SIEM Query:

source="web_logs" AND (uri_path="/wp-admin/admin-ajax.php" AND method="POST" AND (param="action"="thegem_get_logo_url" OR file_upload="true"))

🔗 References

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