SCA: security update for getkirby/cms (GHSA-cw7v-45wm-mcf2)

medium Tenable Cloud Security Plugin ID 441039

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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. (CVE-2026-29905)

Solution

Update the getkirby/cms library and its related packages to version 5.2.0-rc.1 or later.

See Also

https://github.com/advisories/GHSA-cw7v-45wm-mcf2

Plugin Details

Severity: Medium

ID: 441039

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 4/30/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-29905

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/27/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-29905