[原文]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.
UBB.threads contains a flaw that allows a remote HTTP response splitting attack. This flaw exists because the application does not validate the 'Cat' variable upon submission to the 'toggleshow.php' script. This could allow an attacker to create a specially crafted URL that would present a fake web page to a user, steal session cookies, or execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.
Upgrade to version 6.5.2 beta or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.