CVE-2021-23369

CRITICAL
Published Apr 12, 20215y ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Apr 12, 2021 5y ago
Last Modified Jun 17, 2026 1w ago

Description

The package handlebars before 4.7.7 are vulnerable to Remote Code Execution (RCE) when selecting certain compiling options to compile templates coming from an untrusted source.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Affected Products 1

VendorProductVersionRange
handlebarsjshandlebars* <4.7.7

References 7

  • github.com https://github.com/handlebars-lang/handlebars.js/commit/b6d3de7123eebba603e321f04afdbae608e8fea8
    PatchThird Party Advisory
  • github.com https://github.com/handlebars-lang/handlebars.js/commit/f0589701698268578199be25285b2ebea1c1e427
    PatchThird Party Advisory
  • security.netapp.com https://security.netapp.com/advisory/ntap-20210604-0008/
    Third Party Advisory
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1074950
    ExploitThird Party Advisory
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1074951
    ExploitThird Party Advisory
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1074952
    ExploitThird Party Advisory
  • snyk.io https://snyk.io/vuln/SNYK-JS-HANDLEBARS-1056767
    ExploitThird Party Advisory

Remediation

  • github.com https://github.com/handlebars-lang/handlebars.js/commit/b6d3de7123eebba603e321f04afdbae608e8fea8
    PatchThird Party Advisory
  • github.com https://github.com/handlebars-lang/handlebars.js/commit/f0589701698268578199be25285b2ebea1c1e427
    PatchThird Party Advisory