CVE-2026-44176: CWE-862: Missing Authorization in getkirby kirby
Kirby CMS versions prior to 4.9.1 and 5.4.1 have a missing authorization check for the pages.access permission during page draft rendering. Authenticated users without proper access rights could view page drafts if they know the full path, potentially exposing sensitive unpublished content. This issue has been fixed in versions 4.9.1 and 5.4.1.
AI Analysis
Technical Summary
The vulnerability in Kirby CMS (CVE-2026-44176) involves missing authorization checks for the pages.access permission when rendering page drafts. The system incorrectly allows any authenticated user to access drafts if they know the draft's full path, bypassing intended access restrictions. This flaw affects the path resolver in the main CMS router, which fails to verify that the authenticated user has explicit access to the specific page model. The issue is resolved in Kirby versions 4.9.1 and 5.4.1.
Potential Impact
Authenticated attackers with knowledge of the full path to a page draft can access and view unpublished content they are not authorized to see. This could lead to the disclosure of sensitive information such as unreleased product details or posts. The vulnerability does not allow unauthenticated access or modification, but unauthorized read access to drafts poses confidentiality risks.
Mitigation Recommendations
This vulnerability is fixed in Kirby CMS versions 4.9.1 and 5.4.1. Users should upgrade to at least these versions to remediate the issue. No official patch or temporary fix is indicated beyond upgrading. Since this is not a cloud service, remediation depends on applying the fixed versions.
CVE-2026-44176: CWE-862: Missing Authorization in getkirby kirby
Description
Kirby CMS versions prior to 4.9.1 and 5.4.1 have a missing authorization check for the pages.access permission during page draft rendering. Authenticated users without proper access rights could view page drafts if they know the full path, potentially exposing sensitive unpublished content. This issue has been fixed in versions 4.9.1 and 5.4.1.
CVSS v4.0
Score 6.0medium
Affected software
pkg:github/getkirby/kirbyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Kirby CMS (CVE-2026-44176) involves missing authorization checks for the pages.access permission when rendering page drafts. The system incorrectly allows any authenticated user to access drafts if they know the draft's full path, bypassing intended access restrictions. This flaw affects the path resolver in the main CMS router, which fails to verify that the authenticated user has explicit access to the specific page model. The issue is resolved in Kirby versions 4.9.1 and 5.4.1.
Potential Impact
Authenticated attackers with knowledge of the full path to a page draft can access and view unpublished content they are not authorized to see. This could lead to the disclosure of sensitive information such as unreleased product details or posts. The vulnerability does not allow unauthenticated access or modification, but unauthorized read access to drafts poses confidentiality risks.
Mitigation Recommendations
This vulnerability is fixed in Kirby CMS versions 4.9.1 and 5.4.1. Users should upgrade to at least these versions to remediate the issue. No official patch or temporary fix is indicated beyond upgrading. Since this is not a cloud service, remediation depends on applying the fixed versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-05T14:39:34.923Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a59519868715ace43c2e2d6
Added to database: 07/16/2026, 21:48:08 UTC
Last enriched: 07/23/2026, 22:49:55 UTC
Last updated: 08/30/2026, 10:52:09 UTC
Views: 82
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