CVE-2026-41325: CWE-863: Incorrect Authorization in getkirby kirby
CVE-2026-41325 is a high-severity vulnerability in the Kirby CMS prior to versions 4. 9. 0 and 5. 4. 0. It involves incorrect authorization due to the ability to override user permissions during the creation of pages, files, and users by injecting custom dynamic blueprint configurations. This flaw allowed attackers with limited privileges to bypass intended permission restrictions by injecting an 'options' property with 'create' set to true. The issue has been fixed in Kirby versions 4. 9. 0 and 5.
AI Analysis
Technical Summary
Kirby CMS manages user permissions through user and model blueprints that define allowed actions. Before versions 4.9.0 and 5.4.0, an attacker could inject dynamic blueprint configuration into creation requests for pages, files, and users, overriding the 'create' permission and bypassing authorization controls. This vulnerability (CWE-863) allowed privilege escalation by manipulating the 'options' feature in blueprints. The patch introduced filtering of the blueprint property during normalization of creation requests, preventing injection of unauthorized dynamic configurations.
Potential Impact
Exploitation of this vulnerability could allow a user with limited privileges to create pages, files, or users without proper authorization, effectively bypassing the access control mechanisms defined by the site developer. This could lead to unauthorized content creation or user account creation within the CMS, potentially compromising the integrity of the site content and user management.
Mitigation Recommendations
This vulnerability is fixed in Kirby versions 4.9.0 and 5.4.0 and later. Users should upgrade to these or newer versions to remediate the issue. Since no official patch advisory or temporary workaround is provided, upgrading remains the primary mitigation. Patch status is not explicitly confirmed beyond the version fixes mentioned; users should verify with the vendor for the latest remediation guidance.
CVE-2026-41325: CWE-863: Incorrect Authorization in getkirby kirby
Description
CVE-2026-41325 is a high-severity vulnerability in the Kirby CMS prior to versions 4. 9. 0 and 5. 4. 0. It involves incorrect authorization due to the ability to override user permissions during the creation of pages, files, and users by injecting custom dynamic blueprint configurations. This flaw allowed attackers with limited privileges to bypass intended permission restrictions by injecting an 'options' property with 'create' set to true. The issue has been fixed in Kirby versions 4. 9. 0 and 5.
CVSS v4.0
Score 7.1high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Kirby CMS manages user permissions through user and model blueprints that define allowed actions. Before versions 4.9.0 and 5.4.0, an attacker could inject dynamic blueprint configuration into creation requests for pages, files, and users, overriding the 'create' permission and bypassing authorization controls. This vulnerability (CWE-863) allowed privilege escalation by manipulating the 'options' feature in blueprints. The patch introduced filtering of the blueprint property during normalization of creation requests, preventing injection of unauthorized dynamic configurations.
Potential Impact
Exploitation of this vulnerability could allow a user with limited privileges to create pages, files, or users without proper authorization, effectively bypassing the access control mechanisms defined by the site developer. This could lead to unauthorized content creation or user account creation within the CMS, potentially compromising the integrity of the site content and user management.
Mitigation Recommendations
This vulnerability is fixed in Kirby versions 4.9.0 and 5.4.0 and later. Users should upgrade to these or newer versions to remediate the issue. Since no official patch advisory or temporary workaround is provided, upgrading remains the primary mitigation. Patch status is not explicitly confirmed beyond the version fixes mentioned; users should verify with the vendor for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-20T14:01:46.672Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69eac1fc87115cfb688c86f7
Added to database: 4/24/2026, 1:06:04 AM
Last enriched: 5/1/2026, 8:49:54 PM
Last updated: 6/7/2026, 8:27:14 AM
Views: 66
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