SQL injection vulnerability in modules.php in PostNuke 0.764 allows remote attackers to execute arbitrary SQL commands via the sid parameter in a News article modload action.

The pnVarPrepForStore function in PostNuke 0.764 and earlier skips input sanitization when magic_quotes_runtime is enabled, which allows remote attackers to conduct SQL injection attacks and execute arbitrary SQL commands via input associated with server variables, as demonstrated by the CLIENT_IP HTTP header (HTTP_CLIENT_IP variable).

SQL injection vulnerability in index.php in the v4bJournal module for PostNuke allows remote authenticated users to execute arbitrary SQL commands via the id parameter in a journal_comment action.

Cross-site scripting (XSS) vulnerability in preview in the reviews section in PostNuke 0.764 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Unspecified vulnerability in the rating section in PostNuke 0.764 has unknown impact and attack vectors, related to "an interesting bug."

The faq section in PostNuke 0.764 allows remote attackers to obtain sensitive information (the full path) via "unvalidated output" in FAQ/index.php, possibly involving an undefined id_cat variable.

PostNuke 0.7.5.0, and certain minor versions, allows remote attackers to obtain sensitive information via a non-numeric value of the stop parameter, which reveals the path in an error message.

SQL injection vulnerability in the Downloads module for unknown versions of PostNuke allows remote attackers to execute arbitrary SQL commands via the lid parameter in a viewdownloaddetails operation. NOTE: this issue might have been in the viewdownloaddetails function in dl-downloaddetails.php, but PostNuke 0.764 does not appear to have this issue.

Directory traversal vulnerability in error.php in PostNuke 0.763 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the PNSVlang (PNSV lang) cookie, as demonstrated by injecting PHP sequences into an Apache HTTP Server log file, which is then included by error.php.

Cross-site scripting (XSS) vulnerability in nquser.php in VIRtech Netquery allows remote attackers to inject arbitrary web script or HTML via the User-Agent HTTP header.