CVE-2021-33829
mediumPriorität · verfolgen · 25EPSS 0.032 · 88. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
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.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (25)
Betroffene Produkte und Versionsbereiche.
Advisories (4)
Hersteller- und Ökosystem-Meldungen dazu.
- WID-SEC-W-2024-0234OTRS: Mehrere SchwachstellenDeutsch2024-01-28csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in OTRS ausnutzen, um Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen oder einen Cross Site Scripting Angriff durchzuführen.
- GHSA-rgx6-rjj4-c388ckeditor4 vulnerable to cross-site scripting2021-06-21ghsa · osvUS
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.
- BIT-drupal-2021-338292024-03-06vendor · osvUS
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.
- DRUPAL-CORE-2021-0032021-05-26vendor · osvUS
**Update: 2021-06-11: Added CVE-2021-33829 identifier** Drupal core uses the third-party CKEditor library. This library has an error in parsing HTML that could lead to an XSS attack. CKEditor 4.16.1 and later include the fix. Update: 2021-06-11: More details are available on [CKEditor's blog](https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser). Users of the CKEditor library via means other than Drupal core should update their 3rd party code (e.g. the WYSIWYG module for Drupal 7). The Drupal Security Team policy is not to alert for issues affecting 3rd party libraries unless those are shipped with Drupal core. See [DRUPAL-SA-PSA-2016-004 for more details](https://www.drupal.org/psa-2016-004). This issue is mitigated by the fact that it only affects sites with CKEditor enabled.
auch bekannt als (7)
Weitere Namen und Kennungen dieser Entität.
- CNNVD-202106-726cnnvd
- EUVD-2021-1398enisa_euvd
- BDU:2021-04887fstec_bdu
- GHSA-rgx6-rjj4-c388enisa_euvd
- BIT-drupal-2021-33829osv
- DRUPAL-CORE-2021-003osv
- GHSA-rgx6-rjj4-c388osv
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (24)
Externe Belege — Patches, Meldungen, Analysen.
- https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parsercnnvd
- https://lists.debian.org/debian-lts-announce/2021/11/msg00007.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/cnnvd
- https://packetstormsecurity.com/files/166413/Ubuntu-Security-Notice-USN-5340-1.htmlcnnvd
- https://vigilance.fr/vulnerability/CKEditor-Cross-Site-Scripting-via-HTML-Comment-36214cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.3776cnnvd
Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan