The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \/\*\s* sourceMappingURL=(.*).
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.
Vulnerable Library - css-loader-3.6.0.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2021-23382
### Vulnerable Library - postcss-7.0.32.tgzTool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.32.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy: - css-loader-3.6.0.tgz (Root Library) - :x: **postcss-7.0.32.tgz** (Vulnerable Library)
Found in base branch: unstable
### Vulnerability DetailsThe package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \/\*\s* sourceMappingURL=(.*).
Publish Date: 2021-04-26
URL: CVE-2021-23382
### Threat AssessmentExploit Maturity: Not Defined
EPSS: 0.2%
### CVSS 4 Score Details (8.7)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: N/A - Impact Metrics: - Confidentiality Impact: N/A - Integrity Impact: N/A - Availability Impact: N/A
For more information on CVSS4 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23382
Release Date: 2021-04-26
Fix Resolution (postcss): 7.0.36
Direct dependency fix Resolution (css-loader): 4.0.0
In order to enable automatic remediation, please create workflow rules
CVE-2023-44270
### Vulnerable Library - postcss-7.0.32.tgzTool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.32.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy: - css-loader-3.6.0.tgz (Root Library) - :x: **postcss-7.0.32.tgz** (Vulnerable Library)
Found in base branch: unstable
### Vulnerability DetailsAn 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.
Publish Date: 2023-09-29
URL: CVE-2023-44270
### Threat AssessmentExploit Maturity: Not Defined
EPSS: 0.1%
### CVSS 4 Score Details (6.9)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: N/A - Impact Metrics: - Confidentiality Impact: N/A - Integrity Impact: N/A - Availability Impact: N/A
For more information on CVSS4 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/advisories/GHSA-7fh5-64p2-3v2j
Release Date: 2023-09-29
Fix Resolution (postcss): 8.4.31
Direct dependency fix Resolution (css-loader): 6.9.0
In order to enable automatic remediation, please create workflow rules
CVE-2021-23368
### Vulnerable Library - postcss-7.0.32.tgzTool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.32.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy: - css-loader-3.6.0.tgz (Root Library) - :x: **postcss-7.0.32.tgz** (Vulnerable Library)
Found in base branch: unstable
### Vulnerability DetailsThe package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.
Publish Date: 2021-04-12
URL: CVE-2021-23368
### Threat AssessmentExploit Maturity: Not Defined
EPSS: 0.5%
### CVSS 4 Score Details (6.9)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: N/A - Impact Metrics: - Confidentiality Impact: N/A - Integrity Impact: N/A - Availability Impact: N/A
For more information on CVSS4 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23368
Release Date: 2021-04-12
Fix Resolution (postcss): 7.0.36
Direct dependency fix Resolution (css-loader): 4.0.0
In order to enable automatic remediation, please create workflow rules
In order to enable automatic remediation for this issue, please create workflow rules