getkirby Kirby up to 4.9.0/5.4.0 Collection Queries password/loginPasswordless/root/delete model weak password hash

Summaryinfo

A vulnerability labeled as problematic has been found in getkirby Kirby up to 4.9.0/5.4.0. This affects the function password/loginPasswordless/root/delete of the component Collection Queries. The manipulation of the argument model results in weak password hash. This vulnerability is reported as CVE-2026-44174. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in getkirby Kirby up to 4.9.0/5.4.0. It has been classified as problematic. Affected is the function password/loginPasswordless/root/delete of the component Collection Queries. The manipulation of the argument model with an unknown input leads to a weak password hash vulnerability. CWE is classifying the issue as CWE-916. The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive. This is going to have an impact on confidentiality. CVE summarizes:

Kirby is an open-source content management system. Prior to 4.9.1 and 5.4.1, Kirby did not validate the model attributes that were used in its collection queries, allowing attackers to include arbitrary model methods in their queries. This includes methods with sensitive data such as password() (disclosing the password hash) or root() (disclosing the absolute filesystem path on the server) as well as methods that perform impactful actions such as loginPasswordless() (causing a privilege escalation to another user) or delete() (deleting all queried models in one go if the authenticated user has appropriate permissions). This issue has been fixed in versions 4.9.1 and 5.4.1.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-44174 since 05/05/2026. The exploitability is told to be difficult. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1552 by the MITRE ATT&CK project.

Upgrading to version 4.9.1 or 5.4.1 eliminates this vulnerability.

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Productinfo

Vendor

• getkirby

Name

• Kirby

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9.0
• 5.0
• 5.1
• 5.2
• 5.3
• 5.4.0

Website

• Product: https://github.com/getkirby/kirby/

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