vbulletin

More: http://news.softpedia.com/news/vbulletin-zero-day-used-to-hack-official-vbulletin-website-and-foxit-software-495620.shtml (2. November, 2015) vBulletin is the most common commercial forum software on the Internet, though its market share has been plummeting in recent years. It's used by...