vBulletin through 5.5.4 mishandles custom avatars.Referenceshttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4423646-vbulletin-5-5-x-5-5-2-5-5-3-and-5-5-4-security-patch-level-2http://seclists.org/fulldisclosure/2019/Oct/9http://packetstormsecurity.com/files/154759/vBulletin-5.5.4-Remote-Code-Execution.html
