Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brecht Custom Related Posts custom-related-posts allows Stored XSS.This issue affects Custom Related Posts: from n/a through <= 1.7.4.
The Custom Related Posts plugin for WordPress is vulnerable to unauthorized access & modification of data due to a missing capability check on three AJAX actions in all versions up to, and including, 1.7.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to search posts and link/unlink relations.