SQL injection vulnerability in PostNuke 7.2.6 and earlier allows remote attackers to execute arbitrary SQL via (1) the sif parameter to index.php in the Comments module or (2) timezoneoffset parameter to changeinfo.php in the Your_Account module.
SQL injection vulnerability in the members_list module in PostNuke 0.726, and possibly earlier, allows remote attackers to execute arbitrary SQL commands via the sortby parameter.
Cross-site scripting (XSS) vulnerability in the Downloads module in PostNuke up to 0.726, and possibly later versions, allows remote attackers to inject arbitrary HTML and web script via the ttitle parameter in a viewdownloaddetails action.
PostNuke 0.7.2.6 allows remote attackers to gain information via a direct HTTP request to files in the (1) includes/blocks directory, (2) pnadodb directory, (3) NS-NewUser module, (4) NS-Your_Account, (5) NS-LostPassword module, or (6) NS-User module which reveals the path to the web server in a PHP error message.
Multiple cross-site scripting (XSS) vulnerabilities in PostNuke 0.726 allows remote attackers to inject arbitrary web script or HTML via the (1) lid and query parameters to the Downloads module, (2) query parameter to the Web_links module, or (3) hlpfile parameter to openwindow.php.