Cross-site Scripting (XSS) Affecting thunderbird package, versions <0:78.4.3-1.amzn2.0.1


Severity

Recommended
critical

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.66% (81st percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRD-1692292
  • published27 Sept 2021
  • disclosed1 Oct 2020

Introduced: 1 Oct 2020

CVE-2020-15676  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird to version 0:78.4.3-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2020-1572.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

CVSS Scores

version 3.1