CVE-2020-36890 - CVE House
Back to Database
Status published High CVE-2020-36890

Kentico Xperience <= 10 Administrator Access Control Bypass

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-36890

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Denis Styopochkin - Security Engineer, SoftServe

References

More from Kentico

View All →
CVE-2025-5591
Stored Cross-site Scripting (XSS) in Kentico Xperience 13
High 7.7
CVE-2025-32370
Kentico Xperience before 13.0.178 has a specific set of allowed...
High 7.2
CVE-2025-32369
Kentico Xperience before 13.0.181 allows authenticated users to distribute malicious...
Medium 6.4
CVE-2025-2878
Kentico CMS Additional Database Installation Wizard install.aspx cross site scripting
Medium 4.8
CVE-2025-2794
Kentico Xperience <= 13.0.180 Unsafe Reflection
High 8.7

Affected Vendor

Affected Software

Xperience
Vulnerable Versions:
0

Timeline

Official Publish: December 18th, 2025
Last Modified: December 18th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-862

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1078 Valid Accounts
Persistence
T1531 Account Access Removal
Impact