PublicDateAtUSN: 2021-06-09 12:15:00 UTC
Candidate: CVE-2021-33829
PublicDate: 2021-06-09 12:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33829
 https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser
 https://github.com/ckeditor/ckeditor4/commit/3e426ce34f7fc7bf784624358831ef9e189bb6ed
 https://ubuntu.com/security/notices/USN-5340-1
Description:
 A cross-site scripting (XSS) vulnerability in the HTML Data Processor in
 CKEditor 4 4.14.0 through 4.16.x before 4.16.1 allows remote attackers to
 inject executable JavaScript code through a crafted comment because --!> is
 mishandled.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N [6.1 MEDIUM]


Patches_ckeditor:
upstream_ckeditor: released (4.16.0+dfsg-2)
trusty_ckeditor: ignored (out of standard support)
trusty/esm_ckeditor: DNE
xenial_ckeditor: ignored (out of standard support)
bionic_ckeditor: released (4.5.7+dfsg-2ubuntu0.18.04.1)
focal_ckeditor: released (4.12.1+dfsg-1ubuntu0.1)
groovy_ckeditor: needed
hirsute_ckeditor: ignored (reached end-of-life)
impish_ckeditor: not-affected (4.16.0+dfsg-2)
jammy_ckeditor: not-affected (4.16.0+dfsg-2)
devel_ckeditor: not-affected (4.16.0+dfsg-2)