CVE-2025-64356

4.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the Insert PHP Code Snippet WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. It affects WordPress sites using the plugin version 1.4.3 or earlier, potentially allowing unauthorized users to execute PHP code snippets.

💻 Affected Systems

Products:
  • Insert PHP Code Snippet WordPress Plugin
Versions: n/a through <= 1.4.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable plugin versions are affected regardless of configuration.

⚠️ 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 execute arbitrary PHP code on the WordPress site, leading to complete compromise, data theft, or website defacement.

🟠

Likely Case

Unauthorized users could modify PHP code snippets or execute limited malicious code, potentially disrupting site functionality or stealing data.

🟢

If Mitigated

With proper access controls and authentication, only authorized administrators could manage PHP snippets, limiting impact to configuration errors.

🌐 Internet-Facing: HIGH - WordPress sites are typically internet-facing, and this vulnerability could be exploited remotely by attackers.
🏢 Internal Only: MEDIUM - Internal attackers with network access could exploit this, but external exposure increases overall risk.

🎯 Exploit Status

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

Exploitation requires understanding of WordPress plugin structure and access control bypass techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.4.3

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/insert-php-code-snippet/vulnerability/wordpress-insert-php-code-snippet-plugin-1-4-3-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Insert PHP Code Snippet'. 4. Click 'Update Now' if available, or delete and install latest version from WordPress repository.

🔧 Temporary Workarounds

Disable vulnerable plugin

WordPress

Temporarily disable the Insert PHP Code Snippet plugin until patched

wp plugin deactivate insert-php-code-snippet

🧯 If You Can't Patch

  • Remove the Insert PHP Code Snippet plugin completely from your WordPress installation
  • Implement strict network access controls to limit who can access the WordPress admin interface

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Insert PHP Code Snippet version 1.4.3 or earlier

Check Version:

wp plugin get insert-php-code-snippet --field=version

Verify Fix Applied:

Verify plugin version is greater than 1.4.3 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to plugin admin pages
  • Unexpected PHP code execution in WordPress logs
  • Changes to PHP snippet configurations by non-admin users

Network Indicators:

  • Unusual POST requests to /wp-admin/admin.php?page=insert-php-code-snippet
  • Traffic to plugin-specific endpoints from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("insert-php-code-snippet" OR "php_snippet") AND (user!="admin" OR status=403)

🔗 References

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