CVE-2025-57996

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Buckets WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies or performing unauthorized actions. All WordPress sites using Buckets plugin versions up to 0.3.9 are affected.

💻 Affected Systems

Products:
  • Buckets WordPress Plugin
Versions: n/a through 0.3.9
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with vulnerable Buckets plugin versions are affected regardless of configuration.

⚠️ 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 steal administrator session cookies, take over WordPress admin accounts, deface websites, or redirect users to malicious sites.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires finding and exploiting the specific input validation flaw in the plugin's web page generation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 0.3.9

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/buckets/vulnerability/wordpress-buckets-plugin-0-3-9-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Buckets plugin
4. Click 'Update Now' if update available
5. If no update available, deactivate and remove plugin

🔧 Temporary Workarounds

Disable Buckets Plugin

WordPress

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate buckets

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Enable Content Security Policy (CSP) headers to restrict script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Buckets version ≤ 0.3.9

Check Version:

wp plugin get buckets --field=version

Verify Fix Applied:

Verify Buckets plugin version is > 0.3.9 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Buckets plugin endpoints with script tags
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests containing <script> tags to Buckets plugin URLs
  • Unexpected JavaScript payloads in HTTP traffic

SIEM Query:

source="web_server" AND ("buckets" OR "/wp-content/plugins/buckets/") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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