CVE-2020-4070

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

In CSS Validator less than or equal to commit 54d68a1, there is a cross-site scripting vulnerability in handling URIs. A user would have to click on a specifically crafted validator link to trigger it. This has been patched in commit e5c09a9.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
World Wide Web Consortium (W3C)	CSS Validator	<= 54d68a1

References

Timeline

Published: Jun 22, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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