CVE-2019-19919

Critical

Description

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

SeverityCritical
CVSS9.8
Exploit probability—
ProductHandlebars
PublishedDec 20, 2019
First seenDec 20, 2019

How to fix

Update
  • handlebars4.3.0, 3.0.8 or later
  • tenable tenable.sc5.19.0 or later

Affected products

ProductAffected versionsFixed in
handlebarsnpm4.0.0 ≤ v < 4.3.0, v < 3.0.84.3.0, 3.0.8
handlebars.js_project handlebars.js1.0.6, 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—
tenable tenable.scv < 5.19.05.19.0
bootstrap-wysihtml5-railsRubyGems0.3.3.5 ≤ v ≤ 0.3.3.8—

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