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Mozilla Foundation Security Advisory 2013-58

X-Frame-Options ignored when using server push with multi-part responses

Announced
June 25, 2013
Reporter
Frédéric Buclin
Impact
Moderate
Products
Firefox, SeaMonkey
Fixed in
  • Firefox 22
  • SeaMonkey 2.19

Description

Bugzilla developer Frédéric Buclin reported that the X-Frame-Options header is ignored when server push is used in multi-part responses. This can lead to potential clickjacking on sites that use X-Frame-Options as a protection.

References