Unspecified vulnerability in Google Chrome before 11.0.696.57 allows remote attackers to bypass the pop-up blocker via vectors related to plug-ins.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14399
http://googlechromereleases.blogspot.com/2011/04/chrome-stable-update.html