Title: vBulletin Cross Site Scripting Vulnerability
Date published: 02-08-2011
Vendors contacted: vBulletin team
Class: XSS flaw
Vulnerable page: Admin Login Page (admincp)
Remotely Exploitable: Yes
Locally Exploitable: No
vBulletin is a community forum solution for a wide range of users,
including industry leading companies. A XSS vulnerability has been discovered
that could allow an attacker to carry out an action impersonating a legal user,
or to obtain access to a user's account.
This flaw allows unauthorized disclosure and modification of information,
and it allows disruption of service.
4.1.3pl3, 4.1.4pl3 & 4.1.5pl1
. vBulletin prior to 4.1.3
*Vendor Information, Solutions and Workarounds*
vBulletin team has released patches for this flaw and patch is released on
This vulnerability was discovered by Muhammad Haroon from Innovative
Solutions KSA. OWASP Chapter Lead of Pakistan. haroon [at] live [dot] it
*Proof of Concept Code*
This is a Cross Site Scripting (XSS) vulnerability within vBulletin
community forum solution. In order to exploit this flaw following vector would
30-07-2011: Notifies the vBulletin team about the vulnerability.
31-07-2011: vBulletin Team ask for technical description about the flaw
31-07-2011: Technical Details sent to vbulletin team
02-08-2011: vBulletin notifies that a fix has been produced and is
available to the users on 2nd August 2011
03-08-2011: Vulnerability publicly disclosed.
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