CVE-2021-41165

Published: 17 November 2021

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.

Notes

Author	Note
sbeattie	embedded copies of ckeditor are in ldap-account-manager, rt4, and rt5
litios	No specific patch was found

Priority

Cvss 3 Severity Score

5.4

Score breakdown

Status

Package	Release	Status
ckeditor Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	trusty	Does not exist
	upstream	Released (4.17.0)
	xenial	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	jammy	Needs triage
	lunar	Not vulnerable (4.19.1+dfsg-1)
	mantic	Not vulnerable (4.19.1+dfsg-1)
ckeditor3 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (end of standard support)
	kinetic	Ignored (end of life, was needs-triage)
	jammy	Needs triage
	lunar	Needs triage
	mantic	Needs triage
ldap-account-manager Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (end of life)
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	jammy	Needs triage
	impish	Ignored (end of life)
	lunar	Needs triage
	mantic	Needs triage
request-tracker4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (end of life)
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	jammy	Needs triage
	impish	Ignored (end of life)
	lunar	Needs triage
	mantic	Needs triage

Severity score breakdown

Parameter	Value
Base score	5.4
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Bugs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999909

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