Cross-site Scripting (XSS) Affecting thunderbird package, versions <0:78.5.0-1.el6_10


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-CENTOS6-THUNDERBIRD-2162953
  • published26 Jul 2021
  • disclosed17 Nov 2020

Introduced: 17 Nov 2020

CVE-2020-26958  (opens in a new tab)
CWE-79  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:6 thunderbird to version 0:78.5.0-1.el6_10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

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.

CVSS Scores

version 3.1