Multiple cross-site scripting (XSS) vulnerabilities in QwikiWiki 1.5 allow remote attackers to inject arbitrary web script or HTML via the (1) from and (2) help parameters to (a) index.php; (3) action, (4) page, (5) debug, (6) help, (7) username, or (8) password parameters to (b) login.php; the (7) help parameter to (c) pageindex.php; or (8) help parameter to (d) recentchanges.php.