Cross-site scripting (XSS) vulnerability in BBcode API module in Phorum 5.2.8 allows remote attackers to inject arbitrary web script or HTML via nested BBcode image tags.
https://exchange.xforce.ibmcloud.com/vulnerabilities/45686
http://www.securityfocus.com/bid/31589
http://www.phorum.org/phorum5/read.php?64%2C133699