Unrated severityNVD Advisory· Published Dec 18, 2025· Updated Dec 30, 2025
Kentico Xperience <= 12.0.49 File Upload Stored XSS
CVE-2020-36891
Description
A stored cross-site scripting vulnerability in Kentico Xperience allows attackers to upload files with spoofed Content-Type that do not match file extensions. Attackers can exploit this vulnerability by uploading malicious files with manipulated MIME types, allowing malicious scripts to execute in users' browsers.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- devnet.kentico.com/download/hotfixesmitrevendor-advisorypatch
- www.vulncheck.com/advisories/kentico-xperience-file-upload-stored-xssmitrethird-party-advisory
News mentions
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