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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWMzbTgteDNjZy1xbTJj
Configuration Override in helmet-csp
Versions of helmet-csp before to 2.9.1 are vulnerable to a Configuration Override affecting the application's Content Security Policy (CSP). The package's browser sniffing for Firefox deletes the default-src CSP policy, which is the fallback policy. This allows an attacker to remove an application's default CSP, possibly rendering the application vulnerable to Cross-Site Scripting.
Recommendation
Upgrade to version 2.9.1 or later. Setting the browserSniff configuration to false in vulnerable versions also mitigates the issue.
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWMzbTgteDNjZy1xbTJj
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 4 years ago
Updated: almost 2 years ago
CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Identifiers: GHSA-c3m8-x3cg-qm2c
References:
- https://www.npmjs.com/advisories/1176
- https://github.com/helmetjs/csp/commit/67a69baafa8198a154f0505a0cf0875f76f6186a
- https://snyk.io/vuln/SNYK-JS-HELMETCSP-469436
- https://github.com/advisories/GHSA-c3m8-x3cg-qm2c
Blast Radius: 31.0
Affected Packages
npm:helmet-csp
Dependent packages: 47Dependent repositories: 58,533
Downloads: 1,988,330 last month
Affected Version Ranges: >= 1.2.2, < 2.9.1
Fixed in: 2.9.1
All affected versions: 1.2.2, 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 2.5.0, 2.5.1, 2.6.0, 2.7.0, 2.7.1, 2.8.0, 2.9.0
All unaffected versions: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.3.0, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.2.0, 1.2.1, 2.9.1, 2.9.2, 2.9.3, 2.9.4, 2.9.5, 2.10.0, 3.0.0, 3.1.0, 3.2.0, 3.3.0, 3.3.1, 3.4.0, 4.0.0