What is CVE-2023-53934?

CVE-2023-53934 is a high-severity vulnerability in Kentico Xperience, classified under Improper Neutralization of Server-Side Includes (SSI) Within a Web Page. CVSS score: 7.5/10. Published 2025-12-18.

How severe is CVE-2023-53934?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Kentico Xperience

CVE-2023-53934

A denial of service vulnerability in Kentico Xperience allows attackers to launch DoS attacks via specially crafted requests to the GetResource handler. Improper input validation enables remote attackers to potentially disrupt service avai…

EPSS: 0.002 (37.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Kentico Xperience — versions 0

Weakness classification (CWE)

CWE-97 — Improper Neutralization of Server-Side Includes (SSI) Within a Web Page

References

Kentico DevNet Hotfixes (vendor-advisory, patch)
VulnCheck Advisory: Kentico Xperience <= 12.0.98 GetResource Handler Denial of Service (third-party-advisory)

Frequently asked questions

What is CVE-2023-53934?: CVE-2023-53934 is a high-severity vulnerability in Kentico Xperience, classified under Improper Neutralization of Server-Side Includes (SSI) Within a Web Page. CVSS score: 7.5/10. Published 2025-12-18.
How severe is CVE-2023-53934?: High severity. CVSS v3 base score is 7.5 out of 10.