XSS in Ckeditor
CVE-2020-9440
A cross-site scripting (XSS) vulnerability in the WSC plugin through 5.5.7.5 for CKEditor 4 allows remote attackers to run arbitrary web script inside an IFRAME element by injecting a crafted HTML element into the editor.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.013 (67.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Ckeditor — versions 4.0
- Webspellchecker
- Fedoraproject Fedora — versions 30, 31, 32
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2020-9440?
- CVE-2020-9440 is a medium-severity vulnerability in Ckeditor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-03-10.
- How severe is CVE-2020-9440?
- Medium severity. CVSS v3 base score is 6.1 out of 10.