Multiple cross-site scripting (XSS) vulnerabilities in oBlog allow remote attackers to inject arbitrary web script or HTML via the (1) commentName, (2) commentEmail, (3) commentWeb, or (4) commentText parameter to article.php; and allow remote authenticated administrators to inject arbitrary web script or HTML via the (5) article_id or (6) title parameter to admin/write.php, the (7) category_id or (8) category_name parameter to admin/groups.php, the (9) blogroll_id or (10) title parameter to admin/blogroll.php, or the (11) blog_name or (12) tag_line parameter to admin/settings.php.