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CVE PROGRAM SOURCE RECORDUnscored

CVE-2020-26958

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 in

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Status
Published
Published
Updated
Assigning organization
mozilla

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • < 83affected

Mozilla Firefox ESR

  • < 78.5affected

Mozilla Thunderbird

  • < 78.5affected

References