CVE-2025-66101

4.3 MEDIUM

📋 TL;DR

This vulnerability allows unauthorized users to access bookmark management functions in the CBX Bookmark & Favorite WordPress plugin due to missing authorization checks. It affects all WordPress sites running the plugin version 2.0.1 or earlier. Attackers could manipulate bookmarks they shouldn't have access to.

💻 Affected Systems

Products:
  • CBX Bookmark & Favorite WordPress Plugin
Versions: n/a through <= 2.0.1
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with the vulnerable plugin version installed and activated.

⚠️ 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 delete, modify, or view all user bookmarks across the WordPress site, potentially leading to data loss, privacy violations, or content manipulation.

🟠

Likely Case

Unauthorized users accessing and manipulating bookmarks belonging to other users, causing data integrity issues and potential privacy concerns.

🟢

If Mitigated

Limited impact with proper access controls and monitoring, potentially only affecting non-critical bookmark data.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires some WordPress user access but bypasses authorization checks for bookmark operations.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: >2.0.1

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/cbxwpbookmark/vulnerability/wordpress-cbx-bookmark-favorite-plugin-2-0-1-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Go to Plugins → Installed Plugins
3. Find 'CBX Bookmark & Favorite'
4. Click 'Update Now' if available
5. If no update available, deactivate and delete the plugin
6. Install latest version from WordPress repository

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the vulnerable plugin until patched

wp plugin deactivate cbxwpbookmark

Restrict Access

all

Use WordPress roles/capabilities to limit who can access bookmark functions

🧯 If You Can't Patch

  • Disable the CBX Bookmark & Favorite plugin completely
  • Implement additional access controls at web application firewall level

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → CBX Bookmark & Favorite → Version. If version is 2.0.1 or lower, you are vulnerable.

Check Version:

wp plugin get cbxwpbookmark --field=version

Verify Fix Applied:

Verify plugin version is >2.0.1 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to bookmark-related endpoints
  • Multiple bookmark operations from single user in short time

Network Indicators:

  • HTTP requests to /wp-admin/admin-ajax.php with bookmark-related actions from unauthorized users

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php") AND (action="cbxwpbookmark*" OR user_agent LIKE "%cbxwpbookmark%")

🔗 References

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