Improper Check for Unusual or Exceptional Conditions

Overview Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions in the image upload process due to improper validation of the return value from the getimagesize function. An attacker can cause persistent application crashes and denial of service b...

CVE-2026-29905

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...

CVE-2026-29905

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...

CVE-2026-29905

Kirby CMS (version 5.1.4 and earlier) is affected. An authenticated user with Editor permissions can trigger a persistent DoS by uploading a malformed image; PHP getimagesize() may return false, leading to a fatal TypeError during metadata/thumbnail processing and HTTP 500s. Public details in con...