Multiple SQL injection vulnerabilities in the Web_Links module for PHP-Nuke 7.6 allow remote attackers to execute arbitrary SQL commands via (1) the email or url parameters in the Add function, (2) the url parameter in the modifylinkrequestS function, (3) the orderby or min parameters in the viewlink function, (4) the orderby, min, or show parameters in the search function, or (5) the ratenum parameter in the MostPopular function.