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CVE-2021-26271

Published: Jan 26, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-829
6.5MEDIUM
NVD MITRE
EPSS Score
2.0%
Top 21.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-829

Affected Products

Oracle Corp.
commercial·USaka oracle
agile plmOn-premDatabase
Databases / data-warehouse-analytics
application expressOn-premWeb App
Databases / db-tooling
Financial Services Analytical Applications InfrastructureOn-premDatabase
Databases / data-warehouse-analytics
JD Edwards EnterpriseOne ToolsOn-premDatabase
Databases / relational
Siebel UI FrameworkOn-prem
Databases / db-tooling
WebCenter SitesOn-premWeb App
Enterprise Software / document-mgmt
Oracle Agile PLMOn-premWeb App
Enterprise Software / erp
Database ServerOn-premDatabase
Databases / relational
ckeditor
oss-projectaka ckeditor4, ckeditor5
ckeditorLibraryLibrary
Web & CMS Plugins / cms-core
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
The CKEditor Team
oss-projectaka ckeditor
CKEditorLibrary
Web & CMS Plugins / cms-core
npm
package-ecosystem
ckeditor4-dev
OSS Libraries
and 6 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first
ckeditor.com
https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416
github.com
https://www.oracle.com//security-alerts/cpujul2021.html
oracle.com
and 4 more references View all →

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