CVE-2020-36889

Kentico Xperience <= 12.0.90 Administration Interface Stored XSS

Published Dec 18, 2025 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Kentico Xperience <= 12.0.90 Administration Interface Stored XSS
First Time appeared Kentico
Kentico xperience
Weaknesses CWE-79
CPEs cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*
Vendors & Products Kentico
Kentico xperience
References
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Dec 30, 2025, 2:09 PM
Reserved
Dec 9, 2025, 11:05 AM
Status
Modified
Published
Dec 18, 2025, 8:15 PM
Modified
Jun 17, 2026, 3:16 AM