Cross-site scripting (XSS) vulnerability in Invision Power Board (IPB or IP.Board) 2.3.4 before 2008-03-13 allows remote attackers to inject arbitrary web script or HTML via nested BBCodes, a different vector than CVE-2008-0913.
https://exchange.xforce.ibmcloud.com/vulnerabilities/41209
http://www.vupen.com/english/advisories/2008/0899/references