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CVE-2021-23383

9.8 critical exploit ×2 SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Public exploits 2

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Patch, vendor advisory and mitigation references on NVD 10

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.8 · handlebarsjs, netappNVD modified 2026-10-08 22:17

Affected (CPE criteria) 2

  • cpe:2.3:a:handlebarsjs:handlebars:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*

References 12