CVE-2020-36890 Kentico Xperience <= 10 Administrator Access Control Bypass
Attackers can bypass access controls to modify global administrator privileges and compromise accounts in Kentico Xperience.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36890?
CVE-2020-36890 is a high-severity missing authorization vulnerability in Kentico Xperience, published on 18 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2020-36890?
It affects 1 product.
Products include Kentico Xperience.
How do I fix CVE-2020-36890?
No fix has been published for CVE-2020-36890 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-36890 being exploited?
There is no known exploitation of CVE-2020-36890 in the wild and no public exploit code.
Other vulnerabilities in Kentico Xperience
- CVE-2025-2746 Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel
- CVE-2025-2747 Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel
- CVE-2019-10068 Kentico Xperience Deserialization of Untrusted Data
- CVE-2025-2749 Kentico Xperience Path Traversal
- CVE-2017-17736 Missing authorization in n/a
Sources
Also known as GHSA-wxvc-763r-j974.