Cross-Site Request Forgery (CSRF) vulnerability in Nitesh Singh Ultimate Auction allows Cross Site Request Forgery.This issue affects Ultimate Auction : from n/a through 4.2.5.

The Ultimate WordPress Auction Plugin plugin for WordPress is vulnerable to unauthorized email creation and sending due to a missing capability check on the 'send_auction_email_callback' and 'resend_auction_email_callback' functions in all versions up to, and including, 4.2.6. This makes it possible for unauthenticated attackers to craft emails that include links and send to any email address.

Multiple cross-site scripting (XSS) vulnerabilities in Ultimate Auction 3.67 allow remote attackers to inject arbitrary web script or HTML via the (1) item parameter in item.pl and (2) category parameter in itemlist.pl, which reflects the XSS in an error message. NOTE: the affected version might be wrong since the current version as of 20060116 is 3.6.1.