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CVE-2021-41164

Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTML

Published: Nov 17, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-79
NVD MITRE
8.2CVSSHIGH
EPSS Score
1.3%
Top 34.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

CKEditor4 is an open source WYSIWYG HTML editor. In affected versions a vulnerability has been discovered in the Advanced Content Filter (ACF) module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed 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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Oracle Banking Digital ExperienceOracle Corp.
On-prem
Databases / relational
DrupalСообщество свободного программного обеспечения
On-premCMS Plugin
Web & CMS Plugins / cms-core
Oracle Banking APIsOracle Corp.
On-prem
Databases / relational
CKEditorThe CKEditor Team
Library
Web & CMS Plugins / cms-core
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
oracle corp.commercialUSDatabasesaka oracle
the ckeditor teamoss-projectWeb & CMS Pluginsaka ckeditor
and 12 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-pvmx-g8h5-cprj
github.com
https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417
github.com
https://www.drupal.org/sa-core-2021-011
drupal.org
and 9 more references View all →

Timeline

Published
Nov 17, 2021
Last Updated
Nov 21, 2024

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