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Vulnerabilities

Vulnerability · CVE-2026-41325

Kirby is an open-source content management system.

Published Apr 24, 2026 · catalog updated Jun 17, 2026 · Kirby is an open-source

Check if you run it

No confirmed exploitation is on record for CVE-2026-41325. EPSS is 0.51%. Act only if a listed version of Kirby is an open-source is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Kirby is an open-source).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.51%
Remediation
Advisory link
Affected products
cpe getkirby/kirby

Kirby is an open-source content management system. Kirby's user permissions control which user role is allowed to perform specific actions to content models in the CMS. These permissions are defined for each role in the user blueprint ( ). It is also possible to customize the permissions for each target model in the model blueprints (such as in ) using the feature. The permissions and options together control the authorization of user actions. Kirby provides the , and permissions (among others). These permissions can again be set in the user blueprint and/or in the blueprint of the target model via . Prior to versions 4.9.0 and 5.4.0, Kirby allowed to override the during the creation of pages, files and users by injecting custom dynamic blueprint configuration into the model data. The injected could include , which then caused an override of the permissions and options configured by the site developer in the user and model blueprints. The problem has been patched in Kirby 4.9.0 and Kirby 5.4.0. The patched versions have updated the normalization code that is used during the creation of pages, files and users to include a filter for the property. This prevents the injection of dynamic blueprint configuration into the creation request.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe getkirby/kirbyversion unspecified

How to fix CVE-2026-41325

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41325. EPSS is 0.51%. Act only if a listed version of Kirby is an open-source is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-863: Incorrect Authorization. EPSS 0.51%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 24, 2026 · NIST NVD

    Detected

    Kirby is an open-source content management system. Kirby's user permissions control which user role is allowed to perform specific actions to content models in the CMS. These permissions are defined for each role in the user blueprint ( ). It is also possible to customize the permissions for each target model in the model blueprints (such as in ) using the feature. The permissions and options toge

  2. Jun 17, 2026 · NIST NVD

    Updated

    Kirby is an open-source content management system. Kirby's user permissions control which user role is allowed to perform specific actions to content models in the CMS. These permissions are defined for each role in the user blueprint ( ). It is also possible to customize the permissions for each target model in the model blueprints (such as in ) using the feature. The permissions and options toge

Sources

  • CVE.orgVulnerability recordCVE-2026-41325

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41325

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-41325

    Kirby is an open-source content management system. Kirby's user permissions control which user role is allowed to perform specific actions to content models in the CMS. These permissions are defined for each role in the user blueprint ( ). It is also pos

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.