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CVE-2021-37695

Execution of JavaScript code using malformed HTML in ckeditor

Published: Aug 12, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-79
NVD MITRE
7.3CVSSHIGH
EPSS Score
1.3%
Top 32.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version < 4.16.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

ckeditor4ckeditor
On-prem
Web & CMS Plugins / cms-core
ckeditorckeditor
LibraryLibrary
Web & CMS Plugins / cms-core
debian linuxdebian
On-premOS
Operating Systems / linux-distro
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
application expressoracle
On-premWeb App
Databases / db-tooling
ckeditoross-projectWeb & CMS Pluginsaka ckeditor, ckeditor4, ckeditor5
debianoss-projectGBOperating Systemsaka debian gnu/linux
fedoraprojectoss-projectUSOperating Systemsaka fedora project
oraclecommercialUSDatabasesaka oracle corp.
and 9 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-m94c-37g6-cjhc
github.com
https://github.com/ckeditor/ckeditor4/commit/de3c001540715f9c3801aaa38a1917de46cfcf58
github.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/
lists.fedoraproject.org
and 10 more references View all →

Timeline

Published
Aug 12, 2021
Last Updated
Nov 21, 2024

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