Code injection

2023-09-2922:15:00

PRIOn knowledge base

www.prio-n.com

postcss

code injection

vulnerability

linters

css nodes

5.4 Medium

AI Score

Confidence

High

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.