Mozilla CSRF risk with plugins and 307 redirects (MFSA 2011-10)

Cross-site request forgery CSRF vulnerability in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, and SeaMonkey before 2.0.12, allows remote attackers to hijack the authentication of arbitrary users for requests that were initiated by a plugin and received a 307 redirect to a page on a...