awstats.pl in AWStats 6.5 build 1.857 and earlier allows remote attackers to obtain the installation path via the (1) year, (2) pluginmode or (3) month parameters.
AWStats 6.5, and possibly other versions, allows remote authenticated users to execute arbitrary code by using the configdir parameter to awstats.pl to upload a configuration file whose name contains shell metacharacters, then access that file using the LogFile directive.
The web interface for AWStats 6.4 and 6.5, when statistics updates are enabled, allows remote attackers to execute arbitrary code via shell metacharacters in the migrate parameter.
Cross-site scripting (XSS) vulnerability in awstats.pl in AWStats 6.5 and earlier allows remote attackers to inject arbitrary web script or HTML via the config parameter. NOTE: this might be the same core issue as CVE-2005-2732.