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Cpe:2.3:a:umbraco:cms:*:*:*:*:*:*:*:*

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high advisory

Umbraco CMS: Authentication bypass (CVE-2026-117553)

Umbraco CMS contains an authentication bypass vulnerability involving Host header poisoning that allows unauthenticated attackers to hijack back-office sessions and execute code via Razor templates.

Umbraco CMS +1
1c
high advisory

Umbraco Delivery API Authorization Bypass via Node Expansion

Umbraco CMS contains an authorization bypass vulnerability (CVE-2026-69197) in the Delivery API where protected content is leaked when referenced by an unprotected node through expansion parameters.

Umbraco CMS authorization-bypass api-security umbraco cve-2026-69197
1t 1c