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Prototype Pollution in handlebars

Critical severity GitHub Reviewed Published Feb 10, 2022 to the GitHub Advisory Database • Updated Jan 19, 2024

Package

npm handlebars (npm)

Affected versions

< 4.7.7

Patched versions

4.7.7

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

Published by the National Vulnerability Database May 4, 2021
Reviewed May 19, 2021
Published to the GitHub Advisory Database Feb 10, 2022
Last updated Jan 19, 2024

Severity

Critical
9.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2021-23383

GHSA ID

GHSA-765h-qjxv-5f44

Source code

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