XSS in Kentico Xperience
CVE-2023-53737
A stored cross-site scripting vulnerability in Kentico Xperience allows global administrators to inject malicious payloads via the Localization application. Attackers can execute scripts that could affect multiple parts of the administration interface.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (5.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Kentico Xperience — versions 0
Weakness classification (CWE)
References
- devnet.kentico.com/download/hotfixes (Product, vendor-advisory, patch)
- www.vulncheck.com/advisories/kentico-xperience-localization-application-stored-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-53737?
- CVE-2023-53737 is a medium-severity vulnerability in Kentico Xperience, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-12-18.
- How severe is CVE-2023-53737?
- Medium severity. CVSS v3 base score is 4.8 out of 10.