PostGuestbook Module for PostNuke "tpl_pgb_moddir" PHP File Inclusion Vulnerability
Description
A vulnerability has been identified in PostGuestbook (module for PostNuke), which could be exploited by remote attackers to execute arbitrary commands. This issue is due to an input validation error in the "modules/postguestbook/styles/internal/header.php" script that does not validate the "tpl_pgb_moddir" parameter, which could be exploited by remote attackers to include malicious PHP scripts and execute arbitrary commands with the privileges of the web server.
Vulnerable Products
Vulnerable Software: PostGuestbook (module for PostNuke) version 0.6.1 and prior
