CVE-2025-25166

7.1 HIGH

📋 TL;DR

This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in the InLocation WordPress plugin that allows attackers to inject malicious scripts. When exploited, it enables Stored Cross-Site Scripting (XSS) attacks where injected scripts persist on affected pages. WordPress sites using vulnerable versions of the InLocation plugin are affected.

💻 Affected Systems

Products:
  • WordPress InLocation Plugin
Versions: All versions up to and including 1.8
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the InLocation plugin to be installed and activated on a WordPress site.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, hijack user sessions, deface websites, or redirect visitors to malicious sites through persistent malicious scripts.

🟠

Likely Case

Attackers would typically use this to steal user session cookies or credentials, potentially gaining administrative access to the WordPress site.

🟢

If Mitigated

With proper CSRF protections and content security policies, the attack surface is significantly reduced, though the vulnerability still exists in the code.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires tricking authenticated users into visiting malicious pages while logged into the WordPress admin panel.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.8

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/inlocation/vulnerability/wordpress-inlocation-plugin-1-8-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 InLocation plugin
4. Check for available updates
5. Update to latest version
6. Verify update completed successfully

🔧 Temporary Workarounds

Implement CSRF Tokens

all

Add CSRF protection tokens to all form submissions and AJAX requests in the plugin

Content Security Policy

all

Implement strict Content Security Policy headers to prevent script execution from unauthorized sources

🧯 If You Can't Patch

  • Disable or remove the InLocation plugin entirely
  • Implement web application firewall rules to block CSRF attempts and XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins → InLocation version number

Check Version:

wp plugin list --name=inlocation --field=version

Verify Fix Applied:

Verify InLocation plugin version is greater than 1.8 in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to InLocation plugin endpoints
  • Multiple failed CSRF token validations
  • Suspicious script tags in form submissions

Network Indicators:

  • Unexpected requests to InLocation admin-ajax.php endpoints
  • Requests with suspicious payloads in POST parameters

SIEM Query:

source="wordpress.log" AND ("inlocation" OR "admin-ajax.php") AND (POST OR "csrf" OR "xss")

🔗 References

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