CVE-2025-31859

5.4 MEDIUM

📋 TL;DR

This CSRF vulnerability in Feedbucket WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. Attackers can create malicious requests that execute when an admin visits a compromised page. All WordPress sites running Feedbucket plugin versions up to 1.0.6 are affected.

💻 Affected Systems

Products:
  • Feedbucket – Website Feedback Tool WordPress Plugin
Versions: n/a through 1.0.6
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Feedbucket plugin enabled and admin user authentication

⚠️ 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

Complete site takeover if attacker can trick admin into executing plugin settings changes or installing malicious code

🟠

Likely Case

Unauthorized plugin configuration changes, feedback data manipulation, or injection of malicious scripts

🟢

If Mitigated

Limited impact if CSRF tokens are implemented or admin sessions are properly secured

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires social engineering to trick authenticated admin into clicking malicious link

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.7 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/feedbucket/vulnerability/wordpress-feedbucket-website-feedback-tool-plugin-1-0-6-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Feedbucket plugin
4. Click 'Update Now' if available
5. Alternatively, download latest version from WordPress repository
6. Deactivate old version and upload new version
7. Activate updated plugin

🔧 Temporary Workarounds

Implement CSRF Protection

all

Add nonce verification to Feedbucket plugin forms

Edit plugin PHP files to add wp_nonce_field() and wp_verify_nonce() calls

Temporary Deactivation

linux

Disable Feedbucket plugin until patched

wp plugin deactivate feedbucket

🧯 If You Can't Patch

  • Restrict admin access to trusted networks only
  • Implement strict SameSite cookie policies and use anti-CSRF browser extensions

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Feedbucket version. If version is 1.0.6 or lower, you are vulnerable.

Check Version:

wp plugin get feedbucket --field=version

Verify Fix Applied:

Verify plugin version is 1.0.7 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with feedbucket actions
  • Multiple failed nonce verification attempts

Network Indicators:

  • Cross-origin requests to Feedbucket endpoints without referrer validation
  • Suspicious iframe or form submissions targeting plugin

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" AND action="feedbucket_*")

🔗 References

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