CVE-2026-42174

Published: Mag 09, 2026 Last Modified: Mag 09, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, user avatar creation, replacement and deletion are not gated by user update permissions. This issue has been patched in versions 4.9.0 and 5.4.0.

862

Missing Authorization

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Availability
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
Technologies: AI/ML, Database Server, Not Technology-Specific, Web Server
Likelihood of Exploit: High
View CWE Details
https://github.com/getkirby/kirby/releases/tag/4.9.0
https://github.com/getkirby/kirby/releases/tag/4.9.0
https://github.com/getkirby/kirby/releases/tag/5.4.0
https://github.com/getkirby/kirby/releases/tag/5.4.0
https://github.com/getkirby/kirby/security/advisories/GHSA-…
https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2