CVE-2023-44270
published 2023-09-29CVE-2023-44270: 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…
PriorityP426medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.82%
53.7th percentile
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.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | node-postcss | < node-postcss 8.4.20+~cs8.0.23-1+deb12u1 (bookworm) | node-postcss 8.4.20+~cs8.0.23-1+deb12u1 (bookworm) |
| msrc | azl3_python-tensorboard_2.16.2-6_on_azure_linux_3.0 | — | — |
| postcss | postcss | < 8.4.31 | 8.4.31 |
| postcss | postcss | >= 0 < 8.4.31 | 8.4.31 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
osv5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_msrc5.3MEDIUM
vendor_redhat5.3MEDIUM
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Red Hat
PostCSS: Improper input validation in PostCSS
vendor_redhat·2023-09-29·CVSS 5.3
CVE-2023-44270 [MEDIUM] CWE-93 PostCSS: Improper input validation in PostCSS
PostCSS: Improper input validation in PostCSS
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.
There's a flaw in the PostCSS package where it fails to properly validate the input CSS, causing commented lines to be interpreted as code. An attacker may leverage that by crafting a CSS file with comments containing CSS code in order to force PostCSS to include the malicious CSS elements in its output. An successful attack may lead to integrity impact as it may inject e
Microsoft
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
vendor_msrc·2023-09-12·CVSS 5.3
CVE-2023-44270 [MEDIUM] CWE-74 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
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in
Debian
CVE-2023-44270: node-postcss - An issue was discovered in PostCSS before 8.4.31. The vulnerability affects lint...
vendor_debian·2023·CVSS 5.3
CVE-2023-44270 [MEDIUM] CVE-2023-44270: node-postcss - An issue was discovered in PostCSS before 8.4.31. The vulnerability affects lint...
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.
Scope: local
bookworm: resolved (fixed in 8.4.20+~cs8.0.23-1+deb12u1)
bullseye: resolved (fixed in 8.2.1+~cs5.3.23-8+deb11u1)
forky: resolved (fixed in 8.4.31+~cs8.0.26-1)
sid: resolved (fixed in 8.4.31+~cs8.0.26-1)
trixie: resolved (fixed in 8.4.31+~cs8.0.26-1)
GHSA
PostCSS line return parsing error
ghsa·2023-09-30
CVE-2023-44270 [MEDIUM] CWE-144 PostCSS line return parsing error
PostCSS line return parsing error
An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be `\r` discrepancies, as demonstrated by `@font-face{ font:(\r/*);}` in a rule.
This 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 originally included in a comment.
OSV
PostCSS line return parsing error
osv·2023-09-30
CVE-2023-44270 [MEDIUM] PostCSS line return parsing error
PostCSS line return parsing error
An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be `\r` discrepancies, as demonstrated by `@font-face{ font:(\r/*);}` in a rule.
This 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 originally included in a comment.
OSV
CVE-2023-44270: An issue was discovered in PostCSS before 8
osv·2023-09-29·CVSS 5.3
CVE-2023-44270 [MEDIUM] CVE-2023-44270: An issue was discovered in PostCSS before 8
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.
No detection rules found.
No public exploits indexed.
https://github.com/github/advisory-database/issues/2820https://github.com/postcss/postcss/blob/main/lib/tokenize.js#L25https://github.com/postcss/postcss/commit/58cc860b4c1707510c9cd1bc1fa30b423a9ad6c5https://github.com/postcss/postcss/releases/tag/8.4.31https://github.com/github/advisory-database/issues/2820https://github.com/postcss/postcss/blob/main/lib/tokenize.js#L25https://github.com/postcss/postcss/commit/58cc860b4c1707510c9cd1bc1fa30b423a9ad6c5https://github.com/postcss/postcss/releases/tag/8.4.31https://lists.debian.org/debian-lts-announce/2024/12/msg00025.html
2023-09-29
Published