Multiple SQL injection vulnerabilities in Phorum before 5.1.22 allow remote attackers to execute arbitrary SQL commands via (1) a modified recipients parameter name in (a) pm.php; (2) the curr parameter to the (b) badwords (aka censorlist) or (c) banlist module in admin.php; or (3) the "Edit groups / Add group" field in the (d) groups module in admin.php.
Multiple cross-site scripting (XSS) vulnerabilities in admin.php in Phorum before 5.1.22 allow remote attackers to inject arbitrary web script or HTML via the (1) group_id parameter in the groups module or (2) the smiley_id parameter in the smileys modsettings module.
include/controlcenter/users.php in Phorum before 5.1.22 allows remote authenticated moderators to gain privileges via a modified (1) user_ids POST parameter or (2) userdata array.
Cross-site scripting (XSS) vulnerability in the group moderation control center page in Phorum before 5.1.19 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Cross-site scripting (XSS) vulnerability in the core in Phorum before 5.1.18 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.