Multiple PHP remote file inclusion vulnerabilities in Yet Another Community System (YACS) CMS 6.6.1 allow remote attackers to execute arbitrary PHP code via a URL in the context[path_to_root] parameter in (1) articles/populate.php, (2) categories/category.php, (3) categories/populate.php, (4) comments/populate.php, (5) files/file.php, (6) sections/section.php, (7) sections/populate.php, (8) tables/populate.php, (9) users/user.php, and (10) users/populate.php. The articles/article.php vector is covered by CVE-2006-4532.