Stored Cross-Site Scripting Vulnerability in LJUsers Plugin for WordPress

CVE-2025-13839

What is CVE-2025-13839?

The LJUsers plugin for WordPress suffers from a vulnerability that allows stored cross-site scripting through the 'name' parameter of the 'ljuser' shortcode. This weakness arises from inadequate input sanitization and output escaping of user-supplied attributes. Authenticated attackers with Contributor-level access and above can exploit this vulnerability to inject malicious web scripts into pages. The malicious scripts execute when users access the compromised pages, posing serious security risks to user data and website integrity.

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