CVE-2022-21122

Public Exploit
Arbitrary Code Execution

Description

The package metacalc before 0.0.2 are vulnerable to Arbitrary Code Execution when it exposes JavaScript's Math class to the v8 context. As the Math class is exposed to user-land, it can be used to get access to JavaScript's Function constructor.

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.53% Top 20%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a metacalc
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-METACALC-2826197 third party advisory exploit
https://github.com/metarhia/metacalc/pull/16 third party advisory patch
https://github.com/metarhia/metacalc/commit/625c23d63eabfa16fc815f5832b147b08d2144bd third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-21122?
CVE-2022-21122 has been scored as a critical severity vulnerability.
How to fix CVE-2022-21122?
To fix CVE-2022-21122, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21122 being actively exploited in the wild?
It is possible that CVE-2022-21122 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21122?
CVE-2022-21122 affects n/a metacalc.
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