Multiple cross-site request forgery (CSRF) vulnerabilities in (1) addaddress.php, (2) toggleignore.php, (3) removeignore.php, and (4) removeaddress.php in Infopop UBB.Threads before 6.5.2 Beta allow remote attackers to modify settings as another user via a link or IMG tag.
Multiple HTTP Response Splitting vulnerabilities in (1) toggleshow.php, (2) togglecats.php, and (3) showprofile.php in Infopop UBB.Threads before 6.5.2 Beta allow remote attackers to spoof web content and poison web caches via CRLF ("%0d%0a") sequences in the Cat parameter.
Infopop UBB.Threads before 6.5.2 Beta allows remote attackers to include arbitrary files via the language parameter in a cookie followed by a null (%00) byte.