Sept. 29, 2023, 10:15 p.m. |

National Vulnerability Database web.nvd.nist.gov

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.

attacker css cve external issue nodes parts prepare rules untrusted vulnerability

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