Eval injection vulnerability in awstats.pl in AWStats 6.4 and earlier, when a URLPlugin is enabled, allows remote attackers to execute arbitrary Perl code via the HTTP Referrer, which is used in a $url parameter that is inserted into an eval function call.
Improper Control of Generation of Code The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.