CVE-2025-58229

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Sitekit WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using Sitekit versions up to 2.0 are affected. Attackers can steal session cookies, redirect users, or perform actions on their behalf.

💻 Affected Systems

Products:
  • Sitekit WordPress Plugin
Versions: All versions up to and including 2.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: WordPress multisite installations may be particularly vulnerable due to shared user bases.

⚠️ 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 gain administrative access to WordPress sites, steal sensitive data, deface websites, or install backdoors for persistent access.

🟠

Likely Case

Session hijacking, credential theft, or unauthorized actions performed on behalf of authenticated users.

🟢

If Mitigated

Limited impact with proper input validation and output encoding in place, though vulnerability still exists.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Requires attacker to have ability to inject malicious content into the site, typically through user input fields.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 2.0

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/sitekit/vulnerability/wordpress-sitekit-plugin-2-0-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 Sitekit plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin until patched version is released.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement strict input validation and output encoding for all user-supplied data

Content Security Policy

all

Implement CSP headers to restrict script execution sources

Header set Content-Security-Policy "default-src 'self'; script-src 'self'" in .htaccess or web server config

🧯 If You Can't Patch

  • Disable or remove the Sitekit plugin immediately
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for Sitekit version 2.0 or earlier

Check Version:

wp plugin list --name=sitekit --field=version (if WP-CLI installed)

Verify Fix Applied:

Verify Sitekit plugin version is higher than 2.0 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests with script tags or JavaScript payloads
  • Multiple failed login attempts followed by successful admin access

Network Indicators:

  • Outbound connections to suspicious domains from WordPress server
  • Unexpected iframe or script injections in HTTP responses

SIEM Query:

source="wordpress.log" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=")

🔗 References

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