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Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

🗓️ 21 May 2026 20:43:06Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 13 Views

Authenticated users could inject hypertext into the backoffice confirmation dialog; fixed in version 17.4.0.

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10 Jun 2026 18:41Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.14.6
EPSS0.00029
SSVC
13