CVE 2011-1689
Multiple cross-site scripting (XSS) vulnerabilities in Best Practical Solutions RT 2.0.0 through 3.6.10, 3.8.0 through 3.8.9, and 4.0.0rc through 4.0.0rc7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
See the 
CVE page on Mitre.org
for more details.
