Persistent cross-site scripting (XSS) vulnerability in Umbraco CMS 7.12.3 allows authenticated users to inject arbitrary web script via the Header Name of a content (Blog, Content Page, etc.). The vulnerability is exploited when updating or removing public access of a content.

CVSS Details

CVSS 3.0 Base Score: 4.8
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N)

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CVE-2018-17256: Improper Neutralization of Input During Web Page Generation

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