The Sync Post With Other Site plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sps_add_update_post' function in all versions up to, and including, 1.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create new draft posts and update existing posts.

Cross-Site Request Forgery (CSRF) vulnerability in kp4coder Sync Post With Other Site allows Cross-Site Scripting (XSS).This issue affects Sync Post With Other Site: from n/a through 1.5.1.