CVE-2025-58960

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the WordPress IP Based Login plugin allows attackers to inject malicious scripts that execute when other users view affected pages. The vulnerability affects all versions up to 2.4.3 of the plugin. WordPress sites using this plugin are vulnerable if they have not updated to a patched version.

💻 Affected Systems

Products:
  • WordPress IP Based Login plugin
Versions: n/a through 2.4.3
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: WordPress sites with the vulnerable plugin installed 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, perform actions as authenticated users, 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 execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

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

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 2.4.3

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/ip-based-login/vulnerability/wordpress-ip-based-login-plugin-2-4-3-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 'IP Based Login' and click 'Update Now'. 4. Verify update completes successfully.

🔧 Temporary Workarounds

Disable plugin

WordPress

Temporarily disable the vulnerable plugin until patched version is available

wp plugin deactivate ip-based-login

🧯 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 IP Based Login version 2.4.3 or earlier

Check Version:

wp plugin get ip-based-login --field=version

Verify Fix Applied:

Verify plugin version is higher than 2.4.3 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints with script tags or JavaScript payloads
  • Multiple failed login attempts from unusual IPs if plugin misused

Network Indicators:

  • HTTP requests containing suspicious script tags or JavaScript in parameters

SIEM Query:

web_requests WHERE (uri CONTAINS 'ip-based-login' OR referrer CONTAINS 'ip-based-login') AND (body CONTAINS '<script' OR body CONTAINS 'javascript:' OR parameters CONTAINS 'onload=' OR parameters CONTAINS 'onerror=')

🔗 References

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