CVE-2025-24562

7.1 HIGH

📋 TL;DR

This CSRF vulnerability in KBucket WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in users' browsers when they visit compromised pages. All KBucket installations up to version 4.1.6 are affected.

💻 Affected Systems

Products:
  • KBucket WordPress Plugin
Versions: All versions up to and including 4.1.6
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires KBucket plugin to be installed and activated on WordPress. Attack requires tricking authenticated administrator users.

⚠️ 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 inject persistent malicious scripts that steal administrator credentials, hijack user sessions, deface websites, or redirect users to malicious sites whenever they visit affected KBucket pages.

🟠

Likely Case

Attackers create fake admin interfaces or forms that trick administrators into unknowingly injecting malicious JavaScript into their own websites, leading to session hijacking or credential theft for visitors.

🟢

If Mitigated

With proper CSRF protections and content security policies, the attack surface is reduced, but the vulnerability still exists in the codebase.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires social engineering to trick authenticated administrators. No public exploit code is currently available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 4.1.7 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/kbucket/vulnerability/wordpress-kbucket-plugin-4-1-6-csrf-to-stored-cross-site-scripting-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find KBucket plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download latest version from WordPress repository and manually update.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

WordPress

Disable KBucket plugin until patched to prevent exploitation

wp plugin deactivate kbucket

CSRF Protection Headers

all

Implement Content Security Policy headers to limit script execution

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Remove KBucket plugin entirely if not essential
  • Implement strict user access controls and monitor administrator actions

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → KBucket → Version. If version is 4.1.6 or lower, you are vulnerable.

Check Version:

wp plugin get kbucket --field=version

Verify Fix Applied:

After updating, verify KBucket version shows 4.1.7 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to KBucket admin endpoints
  • Multiple failed CSRF token validations
  • Unexpected JavaScript injections in KBucket content

Network Indicators:

  • Suspicious referrer headers in KBucket requests
  • Unexpected iframe or script loads from KBucket pages

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "kbucket") AND (http_method="POST" AND NOT user_agent CONTAINS "wp-admin")

🔗 References

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