What is CVE-2023-4771?

CVE-2023-4771 is a medium-severity vulnerability in Cksource Ckeditor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-11-16.

How severe is CVE-2023-4771?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-4771 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Cksource Ckeditor

CVE-2023-4771

A Cross-Site scripting vulnerability has been found in CKSource CKEditor affecting versions 4.15.1 and earlier. An attacker could send malicious javascript code through the /ckeditor/samples/old/ajax.html file and retrieve an authorized user's information.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.4th 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

Cksource Ckeditor — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve-coordination@incibe.es (Third Party Advisory)

Frequently asked questions

What is CVE-2023-4771?: CVE-2023-4771 is a medium-severity vulnerability in Cksource Ckeditor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-11-16.
How severe is CVE-2023-4771?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-4771 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.