CVE-2020-26951

State: Published
Severity: Not scored
Published: Dec 9, 2020
Updated: Aug 4, 2024
Reserved: Oct 12, 2020

Description

A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
FirefoxMozilla	< 83Affected
Firefox ESRMozilla	< 78.5Affected
ThunderbirdMozilla	< 78.5Affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1667113
https://www.mozilla.org/security/advisories/mfsa2020-50/
https://www.mozilla.org/security/advisories/mfsa2020-52/
https://www.mozilla.org/security/advisories/mfsa2020-51/

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