CVE-2026-49274: CWE-862: Missing Authorization in getkirby kirby
Kirby CMS versions prior to 4.9.4 and 5.4.4 contain a missing authorization vulnerability in the pages field when roles have the pages.access permission disabled. Authenticated users could exploit this to confirm the existence of arbitrary pages and retrieve their title field values. This issue is addressed in versions 4.9.4 and 5.4.4.
AI Analysis
Technical Summary
CVE-2026-49274 is a missing authorization vulnerability (CWE-862) in the Kirby content management system. Specifically, in versions before 4.9.4 and 5.4.4, when using the pages field with roles that have the pages.access permission disabled, authenticated users could supply an inaccessible parent page or site to the page picker backend. This allowed them to confirm arbitrary page existence and retrieve the title field values of those pages. The vulnerability is fixed in Kirby versions 4.9.4 and 5.4.4.
Potential Impact
Authenticated users with limited permissions could bypass intended access restrictions to confirm the existence of pages they should not access and retrieve sensitive title field information. This could lead to information disclosure within the CMS environment. There is no indication of privilege escalation or remote unauthenticated exploitation.
Mitigation Recommendations
Upgrade Kirby to version 4.9.4 or later, or 5.4.4 or later, where this authorization issue has been fixed. No other mitigation or workaround is indicated. Patch status is confirmed fixed in these versions.
CVE-2026-49274: CWE-862: Missing Authorization in getkirby kirby
Description
Kirby CMS versions prior to 4.9.4 and 5.4.4 contain a missing authorization vulnerability in the pages field when roles have the pages.access permission disabled. Authenticated users could exploit this to confirm the existence of arbitrary pages and retrieve their title field values. This issue is addressed in versions 4.9.4 and 5.4.4.
CVSS v4.0
Score 5.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-49274 is a missing authorization vulnerability (CWE-862) in the Kirby content management system. Specifically, in versions before 4.9.4 and 5.4.4, when using the pages field with roles that have the pages.access permission disabled, authenticated users could supply an inaccessible parent page or site to the page picker backend. This allowed them to confirm arbitrary page existence and retrieve the title field values of those pages. The vulnerability is fixed in Kirby versions 4.9.4 and 5.4.4.
Potential Impact
Authenticated users with limited permissions could bypass intended access restrictions to confirm the existence of pages they should not access and retrieve sensitive title field information. This could lead to information disclosure within the CMS environment. There is no indication of privilege escalation or remote unauthenticated exploitation.
Mitigation Recommendations
Upgrade Kirby to version 4.9.4 or later, or 5.4.4 or later, where this authorization issue has been fixed. No other mitigation or workaround is indicated. Patch status is confirmed fixed in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-28T20:07:58.860Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4ff3f768715ace43ecf62f
Added to database: 07/09/2026, 19:18:15 UTC
Last enriched: 07/09/2026, 19:33:20 UTC
Last updated: 07/09/2026, 23:39:43 UTC
Views: 8
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