Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Postcss | Postcss | < 8.4.31 |
Related Weaknesses (CWE)
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/58cc860b4c1707510c9cd1bc1fa30b423a9ad6Patch
- https://github.com/postcss/postcss/releases/tag/8.4.31PatchRelease 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/58cc860b4c1707510c9cd1bc1fa30b423a9ad6Patch
- https://github.com/postcss/postcss/releases/tag/8.4.31PatchRelease Notes
- https://lists.debian.org/debian-lts-announce/2024/12/msg00025.html
FAQ
What is CVE-2023-44270?
CVE-2023-44270 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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...
How severe is CVE-2023-44270?
CVE-2023-44270 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-44270?
Check the references section above for vendor advisories and patch information. Affected products include: Postcss Postcss.