VulnerabilityModified
CVE-2023-44270
The vulnerability affects linters using PostCSS to parse external untrusted CSS.
MEDIUM 5.3EPSS 0.82%
Does this matter?
Lower severity and a low EPSS score (0.82%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.82% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- postcss/postcss
- Source
- cve@mitre.org
References
- https://github.com/github/advisory-database/issues/2820Issue Tracking
- https://github.com/postcss/postcss/blob/main/lib/tokenize.js#L25Issue Tracking
- https://github.com/postcss/postcss/commit/58cc860b4c1707510c9cd1bc1fa30b423a9ad6c5Patch
- https://github.com/postcss/postcss/releases/tag/8.4.31Patch, Release Notes
- https://github.com/github/advisory-database/issues/2820Issue Tracking
- https://github.com/postcss/postcss/blob/main/lib/tokenize.js#L25Issue Tracking
- https://github.com/postcss/postcss/commit/58cc860b4c1707510c9cd1bc1fa30b423a9ad6c5Patch
- https://github.com/postcss/postcss/releases/tag/8.4.31Patch, Release Notes
- https://lists.debian.org/debian-lts-announce/2024/12/msg00025.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.