Threats Tagged 'cve-2026-108261'
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Threats Tagged 'cve-2026-108261'
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0 TinaCMS admin interface contains a critical vulnerability (CVE-2026-108261) where the preview iframe source URL is constructed from a URL fragment without proper same-origin validation. This allows an attacker to craft a URL that causes the admin to load an attacker-controlled origin in the iframe, which is then trusted by the admin's postMessage channel. Consequently, an unauthenticated remote attacker can perform arbitrary read and write GraphQL operations on the site's content API with the privileges of a logged-in editor. The vulnerability affects TinaCMS versions prior to 3.14.0 and @tinacms/app versions prior to 2.5.14. A patch is available to fix this issue by normalizing the URL and enforcing same-origin checks. Join the discussion | GCVE Database | 10/09/2026, 20:56:48 UTC Added: 10/09/2026, 22:44:15 UTC |
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