CVE-2020-4070

CVSS V2 Low 3.5 CVSS V3 Medium 5.4

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.

Overview

CVE ID
CVE-2020-4070

Assigner
security-advisories@github.com

Vulnerability Status
Analyzed

Published Version
2020-06-22T16:15:11

Last Modified Date
2020-06-30T13:39:13

Weakness Enumerations

CWE	URL
CWE-79	http://cwe.mitre.org/data/definitions/79.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:w3c:css_validator::::::::	1	OR		2020-01-19

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:S/C:N/I:P/A:N

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
SINGLE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
3.5

Severity
LOW

Exploitability Score
6.8

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
REQUIRED

Scope
CHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
5.4

Base Severity
MEDIUM

Exploitability Score
2.3

Impact Score
2.7

References

Reference URL	Reference Tags
https://github.com/w3c/css-validator/commit/e5c09a9119167d3064db786d5f00d730b584a53b	Patch
https://github.com/w3c/css-validator/security/advisories/GHSA-wf36-7w73-rh8c	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-4070
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4070

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 16:41:46				Added to TrackCVE
2022-12-04 18:34:46	2020-06-22T16:15Z	2020-06-22T16:15:11	CVE Published Date	updated
2022-12-04 18:34:46		2020-06-30T13:39:13	CVE Modified Date	updated
2022-12-04 18:34:46		Analyzed	Vulnerability Status	updated