CVE-2025-12391

5.3 MEDIUM

📋 TL;DR

The Restrictions for BuddyPress WordPress plugin has an authentication bypass vulnerability that allows unauthenticated attackers to modify user tracking preferences. This affects all WordPress sites using the plugin up to version 1.5.2. Attackers can exploit this to manipulate user opt-in/opt-out settings without proper authorization.

💻 Affected Systems

Products:
  • Restrictions for BuddyPress WordPress plugin
Versions: All versions up to and including 1.5.2
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with BuddyPress and the Restrictions for BuddyPress plugin installed and active.

⚠️ 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 manipulate user consent tracking data, potentially violating privacy regulations and enabling further social engineering attacks by understanding user behavior patterns.

🟠

Likely Case

Unauthenticated users can toggle tracking preferences for themselves or potentially other users, disrupting analytics and user experience.

🟢

If Mitigated

Limited to tracking preference manipulation with no direct access to sensitive data or system compromise.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Simple HTTP request to vulnerable endpoint with no authentication required.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.5.3 or later

Vendor Advisory: https://wordpress.org/plugins/bp-restrict/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Restrictions for BuddyPress'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.5.3+ from WordPress.org and manually update.

🔧 Temporary Workarounds

Disable plugin temporarily

all

Deactivate the vulnerable plugin until patched

wp plugin deactivate bp-restrict

Web Application Firewall rule

all

Block requests to the vulnerable endpoint

Add WAF rule to block POST requests to */wp-admin/admin-ajax.php* with action parameter containing 'optin' or 'optout'

🧯 If You Can't Patch

  • Disable the Restrictions for BuddyPress plugin completely
  • Implement network-level filtering to block access to /wp-admin/admin-ajax.php from untrusted sources

🔍 How to Verify

Check if Vulnerable:

Check plugin version in WordPress admin under Plugins → Installed Plugins. If version is 1.5.2 or lower, you are vulnerable.

Check Version:

wp plugin get bp-restrict --field=version

Verify Fix Applied:

Confirm plugin version is 1.5.3 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with action parameters containing 'optin' or 'optout' from unauthenticated users
  • Multiple tracking preference changes from single IP addresses

Network Indicators:

  • HTTP POST requests to WordPress admin-ajax endpoint with optin/optout parameters from external IPs

SIEM Query:

source="web_logs" AND uri="/wp-admin/admin-ajax.php" AND (action="optin" OR action="optout") AND user="-"

🔗 References

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