Multiple SQL injection vulnerabilities in the admin section in e107 0.7.5 allow remote authenticated administrative users to execute arbitrary SQL commands via the (1) linkopentype, (2) linkrender, (3) link_class, and (4) link_id parameters in (a) links.php; the (5) searchquery parameter in (b) users.php; and the (6) download_category_class parameter in (c) download.php.  NOTE: an e107 developer has disputed the significance of the vulnerability, stating that "If your admins are injecting you, you might want to reconsider their access."