CVE-2026-42069: CWE-862: Missing Authorization in getkirby kirby
CVE-2026-42069 is a high-severity vulnerability in the open-source content management system Kirby. Prior to versions 4. 9. 0 and 5. 4. 0, the system does not enforce permission checks for read access to site, user, and role information. This missing authorization flaw allows users with limited privileges to access sensitive information without proper gating. The issue has been addressed and patched in Kirby versions 4. 9. 0 and 5.
AI Analysis
Technical Summary
Kirby versions before 4.9.0 and between 5.0.0 and 5.4.0 suffer from a missing authorization vulnerability (CWE-862) where read access to site, user, and role data is not properly restricted by permissions. This allows unauthorized users with low privileges to access sensitive information. The vulnerability has a CVSS 4.0 base score of 7.1, indicating high severity, with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality. The flaw is fixed in versions 4.9.0 and 5.4.0.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized disclosure of sensitive site, user, and role information. This could facilitate further attacks or information gathering by malicious actors. There are no known exploits in the wild at this time.
Mitigation Recommendations
This vulnerability has been patched in Kirby versions 4.9.0 and 5.4.0. Users should upgrade to these versions or later to remediate the issue. Since this is not a cloud service, remediation depends on applying the official updates. Patch status is confirmed by the vendor advisory stating the fix is included in these versions.
CVE-2026-42069: CWE-862: Missing Authorization in getkirby kirby
Description
CVE-2026-42069 is a high-severity vulnerability in the open-source content management system Kirby. Prior to versions 4. 9. 0 and 5. 4. 0, the system does not enforce permission checks for read access to site, user, and role information. This missing authorization flaw allows users with limited privileges to access sensitive information without proper gating. The issue has been addressed and patched in Kirby versions 4. 9. 0 and 5.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Kirby versions before 4.9.0 and between 5.0.0 and 5.4.0 suffer from a missing authorization vulnerability (CWE-862) where read access to site, user, and role data is not properly restricted by permissions. This allows unauthorized users with low privileges to access sensitive information. The vulnerability has a CVSS 4.0 base score of 7.1, indicating high severity, with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality. The flaw is fixed in versions 4.9.0 and 5.4.0.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized disclosure of sensitive site, user, and role information. This could facilitate further attacks or information gathering by malicious actors. There are no known exploits in the wild at this time.
Mitigation Recommendations
This vulnerability has been patched in Kirby versions 4.9.0 and 5.4.0. Users should upgrade to these versions or later to remediate the issue. Since this is not a cloud service, remediation depends on applying the official updates. Patch status is confirmed by the vendor advisory stating the fix is included in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-23T19:17:30.564Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ffe1afcbff5d8610eac9f3
Added to database: 5/10/2026, 1:38:55 AM
Last enriched: 5/10/2026, 1:39:30 AM
Last updated: 5/10/2026, 5:47:56 AM
Views: 5
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