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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE0MnAtcGc4bS1jcWg2

Prototype Pollution in handlebars

Versions of handlebars prior to 4.0.14 are vulnerable to Prototype Pollution. Templates may alter an Objects' prototype, thus allowing an attacker to execute arbitrary code on the server.

Recommendation

For handlebars 4.1.x upgrade to 4.1.2 or later.
For handlebars 4.0.x upgrade to 4.0.14 or later.

Permalink: https://github.com/advisories/GHSA-q42p-pg8m-cqh6
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE0MnAtcGc4bS1jcWg2
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 5 years ago
Updated: about 1 year ago


CVSS Score: 7.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Identifiers: GHSA-q42p-pg8m-cqh6
References: Repository: https://github.com/handlebars-lang/handlebars.js
Blast Radius: 44.5

Affected Packages

npm:handlebars
Dependent packages: 15,556
Dependent repositories: 1,258,975
Downloads: 76,731,489 last month
Affected Version Ranges: < 3.0.7, >= 4.0.0, < 4.0.14, >= 4.1.0, < 4.1.2
Fixed in: 3.0.7, 4.0.14, 4.1.2
All affected versions: 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 1.0.11, 1.0.12, 1.1.0, 1.1.1, 1.1.2, 1.2.0, 1.2.1, 1.3.0, 2.0.0, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.0.8, 4.0.9, 4.0.10, 4.0.11, 4.0.12, 4.0.13, 4.1.0, 4.1.1
All unaffected versions: 3.0.7, 3.0.8, 4.0.14, 4.1.2, 4.2.0, 4.2.1, 4.2.2, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.5.0, 4.5.1, 4.5.2, 4.5.3, 4.6.0, 4.7.0, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.7.8