CVE-2020-4070 Information

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.

CVSS Vector

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

Reference

https://github.com/w3c/css-validator/commit/e5c09a9119167d3064db786d5f00d730b584a53b https://github.com/w3c/css-validator/security/advisories/GHSA-wf36-7w73-rh8c

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4