XSS using outer window's Function object
- December 19, 2006
- Fixed in
- Firefox 126.96.36.199
moz_bug_r_a4 demonstrated that the Function prototype regression described in bug 355161 could be exploited to bypass the protections against cross site script (XSS) injection, which could be used to steal credentials or sensitive data from arbitrary sites or perform destructive actions on behalf of a logged-in user.
This vulnerability is a regression introduced in Firefox 2.0, Firefox 1.5 releases are unaffected.