CVE-2021-33829
- Source
- https://cve.org/CVERecord?id=CVE-2021-33829
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33829.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-33829
- Aliases
- Downstream
- Published
- 2021-06-09T12:15:07.863Z
- Modified
- 2026-03-15T13:45:05.546365Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/
- https://lists.debian.org/debian-lts-announce/2021/11/msg00007.html
- https://www.drupal.org/sa-core-2021-003
- https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser
Affected packages
Git / github.com/ckeditor/ckeditor-releases
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ckeditor/ckeditor-releases
- Events
- Database specific
{ "versions": [ { "introduced": "4.14.0" }, { "fixed": "4.16.1" } ] }
- Type
- GIT
- Repo
- https://github.com/drupal/drupal
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "8.9.0" }, { "fixed": "8.9.16" }, { "introduced": "9.0.0" }, { "fixed": "9.0.14" }, { "introduced": "9.1.0" }, { "fixed": "9.1.9" }, { "introduced": "0" }, { "last_affected": "9.0" } ] }
Affected versions
9.*
9.0.0
9.0.1
9.0.10
9.0.11
9.0.12
9.0.13
9.0.2
9.0.3
9.0.5
9.0.6
9.0.7
9.0.8
9.0.9
standard/4.*
standard/4.14.0
standard/4.14.1
standard/4.15.0
standard/4.15.1
standard/4.16.0
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "33"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "34"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "35"
}
]
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33829.json"