PT-2022-14865 · Metacalc · Metacalc

Vladyslav Dukhin · Published 2022-06-03 · Updated 2026-03-16 · CVE-2022-21122

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions metacalc versions prior to 0.0.2

Description The issue allows for Arbitrary Code Execution when the Math class is exposed to the v8 context, enabling access to JavaScript's Function constructor. This exposure to user-land can be exploited.

Recommendations For versions prior to 0.0.2, update to version 0.0.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the Math class to minimize the risk of exploitation.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2022-21122

GHSA-5GC4-CX9X-9C43

SNYK-JS-METACALC-2826197

Affected Products

Metacalc

References · 9

• 🔥 https://snyk.io/vuln/SNYK-JS-METACALC-2826197 · Exploit
• https://github.com/metarhia/metacalc/commit/625c23d63eabfa16fc815f5832b147b08d2144bd · Patch
• https://github.com/metarhia/metacalc/pull/16 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-21122 · Security Note
• https://osv.dev/vulnerability/CVE-2022-21122 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-5gc4-cx9x-9c43 · Vendor Advisory
• https://github.com/metarhia/metacalc · Note
• https://t.me/cvenotify/31270 · Telegram Post
• https://twitter.com/pulsepatchio/status/2033563766672302530 · Twitter Post