---
id: CVE-2025-5591
title: >-
  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.
summary: >-
  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.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
  - CWE-1188
  - CWE-79
vendor: kentico
product: xperience
affected:
  - 'xperience >= 13.0.0, < 13.0.167'
patched:
  - xperience 13.0.167
published: '2026-01-05'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-5591'
references:
  - url: 'https://www.themissinglink.com.au/security-advisories/cve-2025-5591'
    label: vdp@themissinglink.com.au
tags:
  - nvd
epss: 0.00169
epssPercentile: 0.05624
ingestedAt: '2026-09-30T23:29:32.527Z'
---

## Overview

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.

## Affected

- `xperience >= 13.0.0, < 13.0.167`

## Remediation

Upgrade past the affected range:

- `xperience 13.0.167`