PHP remote file inclusion vulnerability in (1) index.php and (2) admin/index.php in IPrimal Forums as of 20061105 allows remote attackers to execute arbitrary PHP code via a URL in the p parameter.
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.