Multiple cross-site scripting vulnerabilities in PostNuke 0.760-RC3 allow remote attackers to inject arbitrary web script or HTML via the (1) module parameter to admin.php or (2) op parameter to user.php. NOTE: the vendor reports that certain issues could not be reproduced for 760 RC3, or for .750. However, the op/user.php issue exists when the pnAntiCracker setting is disabled.

Multiple SQL injection vulnerabilities in (1) index.php, (2) modules.php, or (3) admin.php in PostNuke 0.760-RC2 allow remote attackers to execute arbitrary SQL code via the catid parameter.

SQL injection vulnerability in modules.php in PostNuke 0.760 RC3 allows remote attackers to execute arbitrary SQL statements via the sid parameter. NOTE: the vendor reports that they could not reproduce the issues for 760 RC3, or for .750.