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CVE-2017-7823 The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to…

Description

The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Affected products and versions

Product Affected versions Fixed in
Firefox 56 earliest → < 56 56
Firefox ESR 52.4 earliest → < 52.4 52.4
Thunderbird 52.4 earliest → < 52.4 52.4

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