Detections
Analytics

CVE-2021-23383

critical

Description

The package handlebars before 4.7.7 are vulnerable to Prototype Pollution when selecting certain compiling options to compile templates coming from an untrusted source.

References

https://security.netapp.com/advisory/ntap-20210618-0007/

https://github.com/handlebars-lang/handlebars.js/commit/f0589701698268578199be25285b2ebea1c1e427

https://github.com/mjholder/cve-agent

https://github.com/advisories/GHSA-2qvq-rjwj-gvw9

https://github.com/fazilbaig1/CVE-2021-23383

https://github.com/advisories/GHSA-765h-qjxv-5f44

https://github.com/dn9uy3n/Check-CVE-2021-23383

https://snyk.io/vuln/SNYK-JS-HANDLEBARS-1279029

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1279030

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1279032

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1279031

Details

Source: Mitre, NVD

Published: 2021-05-04

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.05294