CVE-2025-5591 HIGH

CVE-2025-5591: Stored Cross-site Scripting (XSS) in Kentico Xperience 13

Vendor Kentico

Product Kentico Xperience

Weakness CWE-79 · XSS

Published January 5, 2026

Last update January 5, 2026

View on NVD All CVEs

CVSS base score

7.7/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction —

Confidentiality —

Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U

What the vulnerability does

01Description

Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context.

Key dates

02Disclosure timeline

January 5, 2026 CVE published

January 5, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-5591 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html

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