CVE-2025-23815

7.1 HIGH

📋 TL;DR

This CSRF vulnerability in the linickx root Cookie WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. Attackers could exploit this to modify plugin settings or potentially chain it with other vulnerabilities. All WordPress sites using root Cookie plugin versions up to 1.6 are affected.

💻 Affected Systems

Products:
  • WordPress root Cookie plugin by linickx
Versions: n/a through 1.6
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin active and an authenticated administrator session.

⚠️ 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 chain CSRF with stored XSS to compromise administrator accounts, leading to full site takeover, data theft, or malware injection.

🟠

Likely Case

Attackers modify plugin settings to disrupt functionality or prepare for further attacks, potentially leading to privilege escalation or data exposure.

🟢

If Mitigated

With proper CSRF protections and user awareness, impact is limited to failed attack attempts with no successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires social engineering to trick authenticated users into clicking malicious links while logged in.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.6

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/root-cookie/vulnerability/wordpress-root-cookie-plugin-1-6-csrf-to-stored-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'root Cookie' plugin. 4. Click 'Update Now' if available, or manually install latest version from WordPress repository. 5. Verify plugin is updated to version after 1.6.

🔧 Temporary Workarounds

Implement CSRF Tokens

WordPress

Add CSRF protection to all plugin forms and actions using WordPress nonces

Add wp_nonce_field() to forms and check_admin_referer() to form processing

Disable Plugin

WordPress

Temporarily disable the vulnerable plugin until patched

Navigate to Plugins → Installed Plugins → Deactivate 'root Cookie'

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to detect and block CSRF attempts
  • Educate administrators about phishing risks and require manual confirmation for sensitive actions

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'root Cookie' version ≤1.6

Check Version:

wp plugin list --name='root-cookie' --field=version

Verify Fix Applied:

Confirm plugin version is >1.6 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed CSRF token validations
  • Unexpected plugin setting changes from unusual IPs

Network Indicators:

  • POST requests to admin-ajax.php or plugin endpoints without referrer headers
  • Requests with suspicious parameters from external domains

SIEM Query:

source="wordpress.log" AND ("admin-ajax.php" OR "root-cookie") AND status=200 AND referrer NOT CONTAINS own_domain

🔗 References

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