CVE-2020-36889

5.1 mediumEPSS 0.2%

Medium (5.1) in kentico xperience. EPSS 0.2% chance of exploitation in the next 30 days.

A stored cross-site scripting vulnerability in Kentico Xperience allows attackers to inject malicious scripts via error messages containing specially crafted object names. This allows malicious scripts to execute in users' browsers when administrators view error messages in the administration interface.

Severity

CVSS 4.0

5.1 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2025-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

kentico:xperience

References

https://devnet.kentico.com/download/hotfixes
https://www.vulncheck.com/advisories/kentico-xperience-administration-interface-stored-xss

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