CVE-2021-41165

HTML comments vulnerability allowing to execute JavaScript code

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

CKEditor4 is an open source WYSIWYG HTML editor. In affected version a vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at version < 4.17.0. The problem has been recognized and patched. The fix will be available in version 4.17.0.

CKEditor4 es un editor HTML WYSIWYG de código abierto. En la versión afectada se ha detectado una vulnerabilidad en el módulo central de procesamiento de HTML y puede afectar a todos los plugins usados por CKEditor 4. La vulnerabilidad permitía inyectar comentarios HTML malformados omitiendo el saneo del contenido, lo que podía resultar en una ejecución de código JavaScript. Afecta a todos los usuarios que usan el CKEditor 4 en las versiones anteriores a 4.17.0. El problema ha sido reconocido y parcheado. La corrección estará disponible en la versión 4.17.0.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-15 CVE Reserved
2021-11-17 CVE Published
2023-06-10 EPSS Updated
2024-08-04 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://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417	Third Party Advisory
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2	Third Party Advisory
https://www.drupal.org/sa-core-2021-011	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	Not Applicable

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2022.html	2022-10-05
https://www.oracle.com/security-alerts/cpujan2022.html	2022-10-05

URL	Date	SRC

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"				< 4.17.0 Search vendor "Ckeditor" for product "Ckeditor" and version " < 4.17.0"		-		Affected
Drupal Search vendor "Drupal"		Drupal Search vendor "Drupal" for product "Drupal"				>= 8.9.0 < 8.9.20 Search vendor "Drupal" for product "Drupal" and version " >= 8.9.0 < 8.9.20"		-		Affected
Drupal Search vendor "Drupal"		Drupal Search vendor "Drupal" for product "Drupal"				>= 9.1.0 < 9.1.14 Search vendor "Drupal" for product "Drupal" and version " >= 9.1.0 < 9.1.14"		-		Affected
Drupal Search vendor "Drupal"		Drupal Search vendor "Drupal" for product "Drupal"				>= 9.2.0 < 9.2.9 Search vendor "Drupal" for product "Drupal" and version " >= 9.2.0 < 9.2.9"		-		Affected
Oracle Search vendor "Oracle"		Agile Product Lifecycle Management Search vendor "Oracle" for product "Agile Product Lifecycle Management"				9.3.6 Search vendor "Oracle" for product "Agile Product Lifecycle Management" and version "9.3.6"		-		Affected
Oracle Search vendor "Oracle"		Application Express Search vendor "Oracle" for product "Application Express"				< 22.1 Search vendor "Oracle" for product "Application Express" and version " < 22.1"		-		Affected
Oracle Search vendor "Oracle"		Banking Apis Search vendor "Oracle" for product "Banking Apis"				>= 18.1 <= 18.3 Search vendor "Oracle" for product "Banking Apis" and version " >= 18.1 <= 18.3"		-		Affected
Oracle Search vendor "Oracle"		Banking Apis Search vendor "Oracle" for product "Banking Apis"				19.1 Search vendor "Oracle" for product "Banking Apis" and version "19.1"		-		Affected
Oracle Search vendor "Oracle"		Banking Apis Search vendor "Oracle" for product "Banking Apis"				19.2 Search vendor "Oracle" for product "Banking Apis" and version "19.2"		-		Affected
Oracle Search vendor "Oracle"		Banking Apis Search vendor "Oracle" for product "Banking Apis"				20.1 Search vendor "Oracle" for product "Banking Apis" and version "20.1"		-		Affected
Oracle Search vendor "Oracle"		Banking Apis Search vendor "Oracle" for product "Banking Apis"				21.1 Search vendor "Oracle" for product "Banking Apis" and version "21.1"		-		Affected
Oracle Search vendor "Oracle"		Banking Digital Experience Search vendor "Oracle" for product "Banking Digital Experience"				>= 18.1 <= 18.3 Search vendor "Oracle" for product "Banking Digital Experience" and version " >= 18.1 <= 18.3"		-		Affected
Oracle Search vendor "Oracle"		Banking Digital Experience Search vendor "Oracle" for product "Banking Digital Experience"				19.1 Search vendor "Oracle" for product "Banking Digital Experience" and version "19.1"		-		Affected
Oracle Search vendor "Oracle"		Banking Digital Experience Search vendor "Oracle" for product "Banking Digital Experience"				19.2 Search vendor "Oracle" for product "Banking Digital Experience" and version "19.2"		-		Affected
Oracle Search vendor "Oracle"		Banking Digital Experience Search vendor "Oracle" for product "Banking Digital Experience"				20.1 Search vendor "Oracle" for product "Banking Digital Experience" and version "20.1"		-		Affected
Oracle Search vendor "Oracle"		Banking Digital Experience Search vendor "Oracle" for product "Banking Digital Experience"				21.1 Search vendor "Oracle" for product "Banking Digital Experience" and version "21.1"		-		Affected
Oracle Search vendor "Oracle"		Commerce Guided Search Search vendor "Oracle" for product "Commerce Guided Search"				11.3.2 Search vendor "Oracle" for product "Commerce Guided Search" and version "11.3.2"		-		Affected
Oracle Search vendor "Oracle"		Peoplesoft Enterprise Peopletools Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools"				8.58 Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" and version "8.58"		-		Affected
Oracle Search vendor "Oracle"		Peoplesoft Enterprise Peopletools Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools"				8.59 Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" and version "8.59"		-		Affected
Oracle Search vendor "Oracle"		Webcenter Portal Search vendor "Oracle" for product "Webcenter Portal"				12.2.1.3.0 Search vendor "Oracle" for product "Webcenter Portal" and version "12.2.1.3.0"		-		Affected
Oracle Search vendor "Oracle"		Webcenter Portal Search vendor "Oracle" for product "Webcenter Portal"				12.2.1.4.0 Search vendor "Oracle" for product "Webcenter Portal" and version "12.2.1.4.0"		-		Affected