Missing Authorization Affecting getkirby/cms package, versions <4.9.4>=5.0.0-alpha.1, <5.4.4
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- published23 Jun 2026
- disclosed18 Jun 2026
- creditadamyordan
Introduced: 18 Jun 2026
NewCVE-2026-54004 (opens in a new tab)How to fix?
Upgrade getkirby/cms to version 4.9.4, 5.4.4 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization via the content.fileRedirects process. An attacker can gain unauthorized access to files in top-level drafts by directly requesting clean file URLs, bypassing authentication and authorization checks. This is only exploitable if the content.fileRedirects option is enabled (set to true or a custom closure) in Kirby 5, or not explicitly disabled in Kirby 4, and the attacker knows the full clean file URL.