XSS in Ckeditor
CVE-2021-41164
CKEditor4 is an open source WYSIWYG HTML editor. In affected versions a vulnerability has been discovered in the Advanced Content Filter (ACF) module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at version < 4.17.0. The problem has been recognized and patched. The fix will be available in version 4.17.0.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.013 (70.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L.
Affected products
- Ckeditor
- Ckeditor Ckeditor4 — versions < 4.17.0
- Drupal
- Oracle Agile_plm — versions 9.3.6
- Oracle Agile_product_lifecycle_management — versions 9.3.6
- Oracle Application_express
- Oracle Banking_apis — versions 19.1, 19.2, 20.1
- Oracle Banking_digital_experience — versions 19.1, 19.2, 20.1
- Oracle Commerce_guided_search — versions 11.3.2
- Oracle Peoplesoft_enterprise_peopletools — versions 8.58, 8.59
Weakness classification (CWE)
References
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Not Applicable)
- security-advisories@github.com (vendor-advisory)
- security-advisories@github.com (vendor-advisory)
Frequently asked questions
- What is CVE-2021-41164?
- CVE-2021-41164 is a high-severity vulnerability in Ckeditor, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2021-11-17.
- How severe is CVE-2021-41164?
- High severity. CVSS v3 base score is 8.2 out of 10.