CVE-2024-27087

Kirby cross-site scripting (XSS) in the link field "Custom" type

Severity Score

4.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Kirby is a content management system. The new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a "Custom" link type for advanced use cases that don't fit any of the pre-defined link formats. As the "Custom" link type is meant to be flexible, it also allows the javascript: URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field. This vulnerability is patched in 4.1.1.

Kirby es un sistema de gestión de contenidos. El nuevo campo de enlace introducido en Kirby 4 permite varios tipos de enlaces diferentes, cada uno de los cuales valida el enlace ingresado en el formato de URL correspondiente. También incluye un tipo de enlace "Personalizado" para casos de uso avanzados que no se ajustan a ninguno de los formatos de enlace predefinidos. Como el tipo de enlace "Personalizado" pretende ser flexible, también permite el esquema de URL javascript:. En algunos casos de uso, esto puede ser intencionado, pero los atacantes también pueden utilizarlo indebidamente para ejecutar código JavaScript arbitrario cuando un usuario o visitante hace clic en un enlace que se genera a partir del contenido del campo de enlace. Esta vulnerabilidad está parcheada en 4.1.1.

*Credits: N/A

CVSS Scores

GitHubv3.1 4.6

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-19 CVE Reserved
2024-02-26 CVE Published
2024-02-27 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (2)

URL	Tag	Source
https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437	X_refsource_misc
https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Getkirby Search vendor "Getkirby"		Kir Search vendor "Getkirby" for product "Kir"				>= 4.0.0 < 4.1.1 Search vendor "Getkirby" for product "Kir" and version " >= 4.0.0 < 4.1.1"		en		Affected