// For flags

CVE-2023-44270

PostCSS: Improper input validation in PostCSS

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

Se descubrió un problema en PostCSS antes de la versión 8.4.31. La vulnerabilidad afecta a los linters que utilizan PostCSS para analizar CSS externos que no son de confianza. Un atacante puede preparar CSS de tal manera que contenga partes analizadas por PostCSS como un comentario CSS. Después del procesamiento por PostCSS, se incluirá en la salida de PostCSS en los nodos CSS (reglas, propiedades) a pesar de estar incluido en un comentario.

Red Hat OpenShift Container Platform release 4.17.14 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-09-28 CVE Reserved
  • 2023-09-29 CVE Published
  • 2024-09-23 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Postcss
Search vendor "Postcss"
 Postcss
Search vendor "Postcss" for product "Postcss"
 < 8.4.31
Search vendor "Postcss" for product "Postcss" and version " < 8.4.31"
node.js
Affected