Maksymilian Arciemowicz has reported multiple vulnerabilities in PostNuke, allowing malicious people to conduct cross-site scripting and SQL injection attacks.

1) Input passed to the "catid" parameter in "modules/News/funcs.php", and the "show" parameter in "modules/Downloads/dl-search.php" isn't properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

Examples:
index.php?catid='[SQL]
modules.php?op=modload&name=News&file=article&sid=1&catid='[SQL]
admin.php?module=NS-AddStory&op=EditCategory&catid='[SQL]
index.php?name=Downloads&req=search&query=&show=[SQL]

2) Input passed to various parameters in the "Downloads" module isn't properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which will get executed in an administrators browser session in context of an affected site when the administrator view new downloads.

The vulnerabilities affect version .750 to .760RC2.

Solution
Apply updated packages:
Further details available in Customer Area

Provided and/or discovered by
Maksymilian Arciemowicz (cXIb8O3)

Changelog
Further details available in Customer Area

Original Advisory
http://news.postnuke.com/Article2669.html

Deep Links
Links available in Customer Area