XSS in Ckeditor
CVE-2021-32808
ckeditor is an open source WYSIWYG HTML editor with rich content support. A vulnerability has been discovered in the clipboard Widget plugin if used alongside the undo feature. The vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0. The problem has been recognized and patched. The fix will be available in version 4.16.2.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (68.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Ckeditor
- Ckeditor Ckeditor4 — versions >= 4.13.0, < 4.16.2
- Oracle Application Express
- Oracle Banking Party Management — versions 2.7.0
- Oracle Commerce Guided Search — versions 11.3.2
- Oracle Commerce Merchandising — versions 11.3.2
- Oracle Documaker — versions 12.6.3, 12.6.4
- Oracle Financial Services Analytical Applications Infrastructure
- Oracle Financial Services Model Management And Governance — versions 8.0.8.0.0, 8.1.0.0.0
- Oracle Jd Edwards Enterpriseone Tools
Weakness classification (CWE)
References
- github.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6c (Third Party Advisory)
- github.com/ckeditor/ckeditor4/releases/tag/4.16.2 (Third Party Advisory, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.oracle.com/security-alerts/cpuoct2021.html (Patch, Third Party Advisory)
- www.oracle.com/security-alerts/cpujan2022.html (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32808?
- CVE-2021-32808 is a high-severity vulnerability in Ckeditor, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2021-08-12.
- How severe is CVE-2021-32808?
- High severity. CVSS v3 base score is 7.6 out of 10.