Multiple cross-site scripting (XSS) vulnerabilities in ProjectBB 0.4.5.1 allow remote attackers to inject arbitrary web script or HTML via (1) the pages parameter to divers.php (incorrectly referred to as "drivers.php" by some sources), (2) in the search feature text area, (3) forum name, (4) site name or (5) the maximum avatar size in the option section, (5) new category or (6) new forum fields in the forum section.