What is CVE-2023-53738?

CVE-2023-53738 is a medium-severity vulnerability in Kentico Xperience, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-18.

How severe is CVE-2023-53738?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Kentico Xperience

CVE-2023-53738

A reflected cross-site scripting vulnerability in Kentico Xperience allows authenticated users to inject malicious scripts via page preview URLs. Attackers can exploit this vulnerability to execute arbitrary scripts in users' browsers during page preview interactions.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (6.8th 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

Kentico Xperience — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (Product, vendor-advisory, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2023-53738?: CVE-2023-53738 is a medium-severity vulnerability in Kentico Xperience, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-18.
How severe is CVE-2023-53738?: Medium severity. CVSS v3 base score is 5.4 out of 10.