CVE-2025-25101

9.6 CRITICAL

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the MetricThemes Munk Sites WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects all versions up to and including 1.0.7, potentially enabling arbitrary plugin installation without the admin's knowledge.

💻 Affected Systems

Products:
  • MetricThemes Munk Sites WordPress Plugin
Versions: n/a through 1.0.7
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires an authenticated administrator to visit a malicious page while logged into WordPress.

⚠️ 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

Attackers could install malicious WordPress plugins with administrative privileges, leading to complete site compromise, data theft, or malware distribution.

🟠

Likely Case

Attackers install backdoor plugins or SEO spam plugins to gain persistent access or manipulate site content.

🟢

If Mitigated

With proper CSRF protections, the attack fails as requests lack valid tokens, preventing unauthorized actions.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

CSRF attacks are well-understood and easy to weaponize with simple HTML/JavaScript payloads.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.8 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/munk-sites/vulnerability/wordpress-munk-sites-plugin-1-0-7-csrf-to-arbitrary-plugin-installation-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Munk Sites' and update to version 1.0.8 or later. 4. If update not available, deactivate and delete the plugin.

🔧 Temporary Workarounds

Implement CSRF Protection

all

Add WordPress nonce verification to plugin forms and AJAX requests

Restrict Admin Access

all

Limit administrator accounts and use separate browsers for admin vs regular browsing

🧯 If You Can't Patch

  • Deactivate and remove the Munk Sites plugin entirely
  • Implement web application firewall (WAF) rules to block CSRF attempts

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Munk Sites version 1.0.7 or earlier

Check Version:

wp plugin list --name=munk-sites --field=version (if WP-CLI installed)

Verify Fix Applied:

Verify Munk Sites plugin is updated to version 1.0.8 or later, or confirm plugin is deactivated/removed

📡 Detection & Monitoring

Log Indicators:

  • Unexpected plugin installation events in WordPress logs
  • Admin actions from unusual IP addresses or user agents

Network Indicators:

  • POST requests to /wp-admin/admin-ajax.php with plugin installation parameters without referrer validation

SIEM Query:

source="wordpress.log" AND "plugin installed" AND user="admin" AND NOT referrer="*wp-admin*"

🔗 References

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