Potential XSS vulnerabilities has been identified in vBulletin 4.0.2 PL2 in relation to the CMS content type search widgets (recent threads, recent posts, and general search), and CMS article preview on section pages. We became aware of one XSS issue involving blog titles being displayed incorrectly in a general search widget set to search for recent blog posts. During the QA process testing that issue, we discovered other related vulnerabilities. This was the cause of the delay in an official announcement and patch release. We are issuing a patch release to address these issues.
The upgrade process is the same as previous patch level releases - simply download the patch from the Members Area, extract the files and upload to...