GitHub Advisoryadvisory · npm

GHSA-g9r4-xpmj-mj65 Prototype Pollution in handlebars

HIGH Published 2020-09-04 Modified 2020-08-31 Official page ↗
Ecosystem
npm
Packages
handlebars
Severity
High
Weaknesses
CWE-1321
Reviewed
2020-08-31

Affected packages

• npm handlebars: < 3.0.8 → fixed in 3.0.8 • npm handlebars: >= 4.0.0, < 4.5.3 → fixed in 4.5.3

Description

Versions of `handlebars` prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions. Recommendation Upgrade to version 3.0.8, 4.5.3 or later.

Related

Weakness · CWE (1)

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness

References