RCE in Ckeditor
CVE-2021-32809
ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.012 (66.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Ckeditor
- Ckeditor Ckeditor4 — versions >= 4.5.2, < 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 Jd_edwards_enterpriseone_tools
- Oracle Peoplesoft_enterprise_peopletools — versions 8.57, 8.58, 8.59
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-32809?
- CVE-2021-32809 is a medium-severity vulnerability in Ckeditor, classified under Code Injection. CVSS score: 4.6/10. Published 2021-08-12.
- How severe is CVE-2021-32809?
- Medium severity. CVSS v3 base score is 4.6 out of 10.