CVE-2025-58240

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the xili-tidy-tags WordPress plugin allows attackers to inject malicious scripts into web pages. When users view affected pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • xili-tidy-tags WordPress plugin
Versions: All versions up to and including 1.12.06
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the xili-tidy-tags plugin enabled.

⚠️ 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 sites, deface websites, or redirect visitors 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: LOW

🎯 Exploit Status

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

Exploitation requires the ability to inject malicious input that gets stored and displayed to other users.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.12.06

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/xili-tidy-tags/vulnerability/wordpress-xili-tidy-tags-plugin-1-12-06-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 xili-tidy-tags plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove the plugin.

🔧 Temporary Workarounds

Disable plugin

WordPress

Temporarily disable the vulnerable plugin until patched version is available

wp plugin deactivate xili-tidy-tags

🧯 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 panel > Plugins > Installed Plugins for xili-tidy-tags version 1.12.06 or earlier

Check Version:

wp plugin get xili-tidy-tags --field=version

Verify Fix Applied:

Verify plugin version is higher than 1.12.06 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

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

Network Indicators:

  • HTTP requests containing common XSS payloads like <script>alert()</script>

SIEM Query:

source="web_server" AND ("xili-tidy-tags" OR "<script>")

🔗 References

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