CVE-2021-32809

Arbitrary HTML injection vulnerability in ckeditor

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.

ckeditor es un editor HTML WYSIWYG de código abierto con soporte de contenido enriquecido. Se ha detectado una potencial vulnerabilidad en el paquete CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard). La vulnerabilidad permitía abusar de la funcionalidad paste usando HTML malformado, lo que podía resultar en la inyección de HTML arbitrario en el editor. Afecta a todos los usuarios que usen los plugins de CKEditor 4 mencionados anteriormente en las versiones posteriores a 4.5.2 incluyéndola. El problema ha sido reconocido y parcheado. La corrección estará disponible en la versión 4.16.2

*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

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

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

2021-05-12 CVE Reserved
2021-08-12 CVE Published
2023-11-08 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94: Improper Control of Generation of Code ('Code Injection')

CAPEC

References (6)

URL	Tag	Source
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpujan2022.html	2023-11-07
https://www.oracle.com/security-alerts/cpuoct2021.html	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD	2023-11-07

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"				>= 4.5.2 < 4.16.2 Search vendor "Ckeditor" for product "Ckeditor" and version " >= 4.5.2 < 4.16.2"		node.js		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected
Oracle Search vendor "Oracle"		Application Express Search vendor "Oracle" for product "Application Express"				< 21.1.4 Search vendor "Oracle" for product "Application Express" and version " < 21.1.4"		-		Affected
Oracle Search vendor "Oracle"		Banking Party Management Search vendor "Oracle" for product "Banking Party Management"				2.7.0 Search vendor "Oracle" for product "Banking Party Management" and version "2.7.0"		-		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"		Commerce Merchandising Search vendor "Oracle" for product "Commerce Merchandising"				11.3.2 Search vendor "Oracle" for product "Commerce Merchandising" and version "11.3.2"		-		Affected
Oracle Search vendor "Oracle"		Documaker Search vendor "Oracle" for product "Documaker"				12.6.3 Search vendor "Oracle" for product "Documaker" and version "12.6.3"		-		Affected
Oracle Search vendor "Oracle"		Documaker Search vendor "Oracle" for product "Documaker"				12.6.4 Search vendor "Oracle" for product "Documaker" and version "12.6.4"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Analytical Applications Infrastructure Search vendor "Oracle" for product "Financial Services Analytical Applications Infrastructure"				>= 8.0.7 <= 8.1.1 Search vendor "Oracle" for product "Financial Services Analytical Applications Infrastructure" and version " >= 8.0.7 <= 8.1.1"		-		Affected
Oracle Search vendor "Oracle"		Jd Edwards Enterpriseone Tools Search vendor "Oracle" for product "Jd Edwards Enterpriseone Tools"				< 9.2.6.0 Search vendor "Oracle" for product "Jd Edwards Enterpriseone Tools" and version " < 9.2.6.0"		-		Affected
Oracle Search vendor "Oracle"		Peoplesoft Enterprise Peopletools Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools"				8.57 Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" and version "8.57"		-		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