Request Tracker (RT) 3.8.x before 3.8.17 and 4.0.x before 4.0.13 allows remote attackers to inject multiple Content-Disposition HTTP headers and possibly conduct cross-site scripting (XSS) attacks via unspecified vectors.
lists.bestpractical.com/pipermail/rt-announce/2013-May/000226.html
lists.bestpractical.com/pipermail/rt-announce/2013-May/000227.html
lists.bestpractical.com/pipermail/rt-announce/2013-May/000228.html
secunia.com/advisories/53505
secunia.com/advisories/53522
www.debian.org/security/2012/dsa-2670
www.osvdb.org/93607