CVE-2019-20920

State: Published
Severity: Not scored
Published: Sep 30, 2020
Updated: Oct 8, 2026
Reserved: Sep 30, 2020

Description

Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://www.npmjs.com/advisories/1316
https://www.npmjs.com/advisories/1324
https://snyk.io/vuln/SNYK-JS-HANDLEBARS-534478

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