vulnerability

Arch Linux: Access restriction bypass (CVE-2020-6813)

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Severity	CVSS	Published	Added	Modified
5	(AV:N/AC:L/Au:N/C:N/I:P/A:N)	Mar 25, 2020	Jul 11, 2025	Nov 27, 2025

Severity

CVSS

(AV:N/AC:L/Au:N/C:N/I:P/A:N)

Published

Mar 25, 2020

Added

Jul 11, 2025

Modified

Nov 27, 2025

Description

A Content Security Policy bypass has been found in Firefox before 74. When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an attacker to inject arbitrary styles, bypassing the intent of the Content Security Policy.

Solution

arch-linux-upgrade-latest

References

CVE-2020-6813
https://attackerkb.com/topics/CVE-2020-6813
URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1605814
URL-https://security.archlinux.org/ASA-202003-8
URL-https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/
URL-https://www.mozilla.org/security/advisories/mfsa2020-08/

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