[+] Invision Power Board XSS vulnerability Software : Invision Power Board (IPB) Affected : IPB v2.x up to v3.0.4 (prior versions might be vulnerable as well) Remote : Yes Required : Internet Explorer +5.0 Vendor : http://www.invisionpower.com/ Download : Commercially available Author : Xacker Contact : N/A Blog : http://xacker.wordpress.com Website : N/A [+] Technical details IP.Board is prone to XSS attacks through maliciously crafted *.txt files attachments. An attacker has to convince a user to view the malicious file in order to run the evil code. The only browser found affected is Internet Explorer +5.0, other browsers (FF/Chrome/Opera..) seems to handle the issue correctly (or simply blindly?) IP.Board v2.x set the MIME-type of *.txt files to (application/x-dirview). If the *.txt file contains JavaScript/HTML it will simply be parsed on IE +5. IP.Board v3.0.4 (and prior) seems to check the content of the files before permitting them, tags like " ,