CVE-2021-23369
Remote Code Execution (RCE)
- Published
- Apr 12, 2021
- Updated
- Sep 16, 2024
- Assigning CNA
- snyk
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 94.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
2Proof-of-concept exploit for CVE-2021-23369, demonstrating a specific vulnerability in a JavaScript-based application.
- CVE-2021-23369Exploit
Python exploit script for CVE-2021-23369, a Remote Code Execution vulnerability in Handlebars template engine versions before 4.7.7. Accepts a target URL and triggers RCE via malicious template compilation.
Responsible use
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