Multiple cross-site scripting (XSS) vulnerabilities in Ultimate PHP Board (aka myUPB) before 2.2.8 allow remote attackers to inject arbitrary web script or HTML via the (1) q parameter to search.php or (2) avatar parameter to profile.php.
https://github.com/PHP-Outburst/myUPB/issues/17
https://github.com/Halamix2/MyUPB/blob/8b00a8f6ea999d22c22b081f4a144f51ec7225b0/changelog.txt
http://www.securityfocus.com/bid/72991
http://www.securityfocus.com/archive/1/534796/100/0/threaded