CVE-2026-29905

MEDIUM

6.5

Description

Kirby CMS through 5.1.4 allows an authenticated user with 'Editor' permissions to cause a persistent Denial of Service (DoS) via a malformed image upload. The application fails to properly validate the return value of the PHP getimagesize() function. When the system attempts to process this file for metadata or thumbnail generation, it triggers a fatal TypeError.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie3/26/2026

Derniere modification4/2/2026

Sourcenvd

Observations honeypot0

Produits affectes

getkirby:kirby

Faiblesses (CWE)

CWE-20CWE-252

References

https://drive.google.com/file/d/1MwvvSYIwnC8kOIzjycGMQZw4d2K2ef8h/view?usp=sharing(cve@mitre.org)

https://github.com/Stalin-143/CVE-2026-29905(cve@mitre.org)

https://github.com/getkirby/kirby/releases/tag/5.2.0-rc.1(cve@mitre.org)

Correlations IOC

Aucune correlation enregistree

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