CVE-2026-44174: CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') in getkirby kirby
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.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-44174 in the Kirby content management system involves unsafe reflection (CWE-470) due to lack of validation on model attributes used in collection queries. Attackers can exploit this to execute arbitrary model methods, potentially disclosing sensitive information (e.g., password hashes via password(), server paths via root()) or performing unauthorized actions such as privilege escalation (loginPasswordless()) or mass deletion (delete()) if permissions allow. This security flaw affects Kirby versions before 4.9.1 and 5.4.1 and has been fixed in those versions.
Potential Impact
Exploitation can lead to disclosure of sensitive data including password hashes and server filesystem paths. Additionally, attackers may escalate privileges to other users or delete multiple models in bulk if the authenticated user has sufficient permissions. This can severely compromise the confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
A fix is available in Kirby versions 4.9.1 and 5.4.1. Users should upgrade to these or later versions to remediate the vulnerability. No vendor advisory content was provided to indicate alternative mitigations or temporary fixes.
CVE-2026-44174: CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') in getkirby kirby
Description
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.
CVSS v4.0
Score 8.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-44174 in the Kirby content management system involves unsafe reflection (CWE-470) due to lack of validation on model attributes used in collection queries. Attackers can exploit this to execute arbitrary model methods, potentially disclosing sensitive information (e.g., password hashes via password(), server paths via root()) or performing unauthorized actions such as privilege escalation (loginPasswordless()) or mass deletion (delete()) if permissions allow. This security flaw affects Kirby versions before 4.9.1 and 5.4.1 and has been fixed in those versions.
Potential Impact
Exploitation can lead to disclosure of sensitive data including password hashes and server filesystem paths. Additionally, attackers may escalate privileges to other users or delete multiple models in bulk if the authenticated user has sufficient permissions. This can severely compromise the confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
A fix is available in Kirby versions 4.9.1 and 5.4.1. Users should upgrade to these or later versions to remediate the vulnerability. No vendor advisory content was provided to indicate alternative mitigations or temporary fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-05T14:39:34.923Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a59519868715ace43c2e2cd
Added to database: 07/16/2026, 21:48:08 UTC
Last enriched: 07/23/2026, 22:37:41 UTC
Last updated: 08/30/2026, 22:52:11 UTC
Views: 68
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