CVE-2025-5591: Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker…
CVE-2025-5591 · Severity: medium · CVSS 5.4 · Published 2026-01-05
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-5591 being exploited in the wild.
How severe is CVE-2025-5591?
Medium severity, with a CVSS score of 5.4, published 5 January 2026.
Which products and versions are affected?
Kentico Xperience. The advisory does not name versions.
Is there a fix for CVE-2025-5591?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-5591?
Check whether you run Kentico Xperience. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.