vBulletin contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate unspecified variables upon submission to the unspecified script. This could allow a user to upload an attachment with a .pdf extension that contains script code, that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Public
Disclosure:
OSVDB Verified,
Vendor Verified
OSVDB:
Web Related
Solution
Upgrade to version 2.3.10, 3.0.15, 3.5.5, 3.6.0 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.