CVE-2023-44270

2023-09-2900:00:00

ubuntu.com

postcss

external untrusted css

linters

vulnerability

parse

attacker

prepare

comment

rules

properties

bugs

debian

unix

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

20.6%

JSON

An issue was discovered in PostCSS before 8.4.31. The vulnerability affects
linters using PostCSS to parse external untrusted CSS. An attacker can
prepare CSS in such a way that it will contains parts parsed by PostCSS as
a CSS comment. After processing by PostCSS, it will be included in the
PostCSS output in CSS nodes (rules, properties) despite being included in a
comment.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1053282>

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchnode-postcss< anyUNKNOWN
ubuntu22.04noarchnode-postcss< anyUNKNOWN
ubuntu23.10noarchnode-postcss< anyUNKNOWN
ubuntu24.04noarchnode-postcss< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	node-postcss	< any	UNKNOWN
ubuntu	22.04	noarch	node-postcss	< any	UNKNOWN
ubuntu	23.10	noarch	node-postcss	< any	UNKNOWN
ubuntu	24.04	noarch	node-postcss	< any	UNKNOWN