Tiki CMS/Groupware (TikiWiki) 1.8.1 and earlier allows remote attackers to inject arbitrary code via the (1) Theme, (2) Country, (3) Real Name, or (4) Displayed time zone fields in a User Profile, or the (5) Name, (6) Description, (7) URL, or (8) Country fields in a Directory/Add Site operation.
http://tikiwiki.org/tiki-read_article.php?articleId=66