Incomplete blacklist vulnerability in the t3lib_div::quoteJSvalue API function in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain HTML5 JavaScript events.
https://exchange.xforce.ibmcloud.com/vulnerabilities/77794
http://www.openwall.com/lists/oss-security/2012/08/22/8
http://www.debian.org/security/2012/dsa-2537
http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2012-004/