CVE-2025-30856

4.3 MEDIUM

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the Custom Field For WP Job Manager WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects WordPress sites using the plugin versions up to 1.4. The vulnerability requires an authenticated admin to be tricked into clicking a malicious link.

💻 Affected Systems

Products:
  • Custom Field For WP Job Manager WordPress Plugin
Versions: n/a through 1.4
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with the vulnerable plugin installed and activated. Only affects admin users who can be tricked into clicking malicious links.

⚠️ 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

An attacker could create or modify job listings, potentially injecting malicious content or redirects that affect site visitors.

🟠

Likely Case

Attackers could modify job listing fields or settings through forged admin requests, disrupting job board functionality.

🟢

If Mitigated

With proper CSRF protections or plugin updates, no unauthorized actions can be performed through forged requests.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires social engineering to trick authenticated admins. No authentication bypass is involved.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.5 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/custom-field-for-wp-job-manager/vulnerability/wordpress-custom-field-for-wp-job-manager-plugin-1-4-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Custom Field For WP Job Manager'. 4. Click 'Update Now' if available, or download version 1.5+ from WordPress repository. 5. Activate the updated plugin.

🔧 Temporary Workarounds

Implement CSRF Protection Headers

all

Add security headers to WordPress to help prevent CSRF attacks

Add to .htaccess: Header set X-Frame-Options "SAMEORIGIN"
Add to .htaccess: Header set Content-Security-Policy "frame-ancestors 'self'"

Temporary Plugin Deactivation

linux

Disable the vulnerable plugin until patched

wp plugin deactivate custom-field-for-wp-job-manager

🧯 If You Can't Patch

  • Restrict admin access to trusted networks only
  • Implement additional CSRF tokens via security plugins

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Installed Plugins for 'Custom Field For WP Job Manager' version 1.4 or lower

Check Version:

wp plugin get custom-field-for-wp-job-manager --field=version

Verify Fix Applied:

Verify plugin version is 1.5 or higher in WordPress admin plugins page

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to wp-admin/admin-ajax.php from unexpected referrers
  • Multiple job listing modifications from single admin session

Network Indicators:

  • HTTP requests with missing or mismatched CSRF tokens
  • Suspicious referrer headers in admin requests

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path="/wp-admin/post.php") AND http_method="POST" AND referrer NOT CONTAINS "yourdomain.com"

🔗 References

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