Multiple cross-site scripting (XSS) vulnerabilities in Tiki CMS/Groupware (TikiWiki) 1.8.1 and earlier allow remote attackers to inject arbitrary web script or HTML via via the (1) theme parameter to tiki-switch_theme.php, (2) find and priority parameters to messu-mailbox.php, (3) flag, priority, flagval, sort_mode, or find parameters to messu-read.php, (4) articleId parameter to tiki-read_article.php, (5) parentId parameter to tiki-browse_categories.php, (6) comments_threshold parameter to tiki-index.php (7) articleId parameter to tiki-print_article.php, (8) galleryId parameter to tiki-list_file_gallery.php, (9) galleryId parameter to tiki-upload_file.php, (10) faqId parameter to tiki-view_faq.php, (11) chartId parameter to tiki-view_chart.php, or (12) surveyId parameter to tiki-survey_stats_survey.php.