---
id: CVE-2020-36890
title: >-
  An access control bypass vulnerability in Kentico Xperience allows
  administrators to modify global administrator user privileges via unauthorized
  requests
summary: >-
  An access control bypass vulnerability in Kentico Xperience allows
  administrators to modify global administrator user privileges via unauthorized
  requests. Attackers could potentially compromise global administrator accounts
  and invalida…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-862
vendor: kentico
product: xperience
affected:
  - xperience <= 12.0.60
published: '2025-12-18'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-36890'
references:
  - url: 'https://devnet.kentico.com/download/hotfixes'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/kentico-xperience-administrator-access-control-bypass
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00343
epssPercentile: 0.25051
ingestedAt: '2026-08-11T16:47:03.797Z'
---

## Overview

An access control bypass vulnerability in Kentico Xperience allows administrators to modify global administrator user privileges via unauthorized requests. Attackers could potentially compromise global administrator accounts and invalidate security-sensitive macros by manipulating user privilege levels.

## Affected

- `xperience <= 12.0.60`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.