XSS in Ckeditor

CVE-2022-24728

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4 prior to version 4.18.0. The vulnerability allows someone to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. This problem has been patched in version 4.18.0. There are currently no known workarounds.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.012 (66.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-24728?
CVE-2022-24728 is a medium-severity vulnerability in Ckeditor, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-03-16.
How severe is CVE-2022-24728?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-24728 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.