The YARPP – Yet Another Related Posts Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to and including 5.30.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in YARPP allows PHP Local File Inclusion.This issue affects YARPP: from n/a through 5.30.4.

The YARPP – Yet Another Related Posts Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.30.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The YARPP WordPress plugin before 5.30.3 does not validate and escape some of its shortcode attributes before using them in SQL statement/s, which could allow any authenticated users, such as subscribers to perform SQL Injection attacks.