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mozillaMozilla FoundationMFSA2013-42
HistoryMay 14, 2013 - 12:00 a.m.

Privileged access for content level constructor — Mozilla

2013-05-1400:00:00
Mozilla Foundation
www.mozilla.org
16

0.908 High

EPSS

Percentile

98.8%

Security researcher Cody Crews reported a method to call a content level constructor that allows for this constructor to have chrome privileged accesss. This affects chrome object wrappers (COW) and allows for write actions on objects when only read actions should be allowed. This can lead to cross-site scripting (XSS) attacks.