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CVE-2019-11711 When an inner window is reused, it does not consider the use of document.domain for cross-origin protections

Description

When an inner window is reused, it does not consider the use of document.domain for cross-origin protections. If pages on different subdomains ever cooperatively use document.domain, then either page can abuse this to inject script into arbitrary pages on the other subdomain, even those that did not use document.domain to relax their origin security. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

Affected products and versions

Product Affected versions Fixed in
Firefox ESR 60.8 earliest → < 60.8 60.8
Firefox 68 earliest → < 68 68
Thunderbird 60.8 earliest → < 60.8 60.8
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