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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXc0NTctNnE2eC1jZ3A5

Prototype Pollution in handlebars

Versions of handlebars prior to 3.0.8 or 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Objects' __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.

Recommendation

Upgrade to version 3.0.8, 4.3.0 or later.

Permalink: https://github.com/advisories/GHSA-w457-6q6x-cgp9
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXc0NTctNnE2eC1jZ3A5
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 4 years ago
Updated: 5 months ago


CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-w457-6q6x-cgp9, CVE-2019-19919
References: Repository: https://github.com/wycats/handlebars.js
Blast Radius: 87.7

Affected Packages

npm:handlebars
Dependent packages: 15,556
Dependent repositories: 1,258,975
Downloads: 65,805,502 last month
Affected Version Ranges: < 3.0.8, >= 4.0.0, < 4.3.0
Fixed in: 3.0.8, 4.3.0
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, 3.0.7, 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, 4.0.14, 4.1.0, 4.1.1, 4.1.2, 4.2.0, 4.2.1, 4.2.2
All unaffected versions: 3.0.8, 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
rubygems:bootstrap-wysihtml5-rails
Dependent packages: 16
Dependent repositories: 708
Downloads: 2,901,085 total
Affected Version Ranges: >= 0.3.3.5, <= 0.3.3.8
No known fixed version
All affected versions: