CVE-2024-24815

CKEditor4 Cross-site scripting (XSS) vulnerability caused by incorrect CDATA detection

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered in the core HTML parsing module in versions of CKEditor4 prior to 4.24.0-lts. It may affect all editor instances that enabled full-page editing mode or enabled CDATA elements in Advanced Content Filtering configuration (defaults to `script` and `style` elements). The vulnerability allows attackers to inject malformed HTML content bypassing Advanced Content Filtering mechanism, which could result in executing JavaScript code. An attacker could abuse faulty CDATA content detection and use it to prepare an intentional attack on the editor. A fix is available in version 4.24.0-lts.

CKEditor4 es un editor HTML de código abierto de lo que ves es lo que obtienes. Se ha descubierto una vulnerabilidad de cross-site scripting en el módulo principal de análisis HTML en versiones de CKEditor4 anteriores a la 4.24.0-lts. Puede afectar a todas las instancias del editor que habilitaron el modo de edición de página completa o habilitaron elementos CDATA en la configuración de filtrado de contenido avanzado (los elementos predeterminados son `script` y `style`). La vulnerabilidad permite a los atacantes inyectar contenido HTML con formato incorrecto sin pasar por el mecanismo de filtrado de contenido avanzado, lo que podría resultar en la ejecución de código JavaScript. Un atacante podría abusar de la detección de contenido CDATA defectuosa y utilizarla para preparar un ataque intencional al editor. Hay una solución disponible en la versión 4.24.0-lts.

*Credits: N/A

CVSS Scores

NISTv3.1 6.1

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

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

2024-01-31 CVE Reserved
2024-02-07 CVE Published
2024-03-07 EPSS Updated
2024-08-01 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 (6)

URL	Tag	Source
https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dtd.html#property-S-cdata	Product
https://ckeditor.com/docs/ckeditor4/latest/features/fullpage.html	Product
https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html	Product
https://www.drupal.org/sa-contrib-2024-009

URL	Date	SRC

URL	Date	SRC
https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb	2024-03-06

URL	Date	SRC
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-fq6h-4g8v-qqvm	2024-03-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ckeditor Search vendor "Ckeditor"		Ckeditor Search vendor "Ckeditor" for product "Ckeditor"				>= 4.0 < 4.24.0 Search vendor "Ckeditor" for product "Ckeditor" and version " >= 4.0 < 4.24.0"		lts		Affected