Vulnerability · Published Jul 16, 2026 · Assigned by GitHub_M

CVE-2026-44174Kirby: Arbitrary Method Call via REST API search and collection query endpoints

High 8.7

In plain English

A high-severity security flaw in kirby from getkirby. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.5%top 57.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	getkirby/cms	4.9.1	GHSA-86rh-h242-j8xp
Packagist	getkirby/cms	5.4.1	GHSA-86rh-h242-j8xp

Affected products (as reported)

Vendor	Product	Versions
getkirby	kirby	< 4.9.1>= 5.0.0, < 5.4.1

Weakness: CWE-470 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/getkirby/kirby/security/advisories/GHSA-86rh-h242-j8xp x_refsource_CONFIRM
https://github.com/getkirby/kirby/releases/tag/4.9.1 x_refsource_MISC
https://github.com/getkirby/kirby/releases/tag/5.4.1 x_refsource_MISC