Security Advisory

CVE-2020-26958

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2020-12-09 00:22:19

Last updated 2024-08-04 16:03:23

Assigner mozilla

CVSS score not scored

State PUBLISHED

Description

Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached through a ServiceWorker. This could lead to a cross-site script inclusion vulnerability, or a Content Security Policy bypass. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

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