MyBB Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2016-9405
Cross-site scripting (XSS) vulnerability in member validation in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.