Input Validation Flaw in Ghost Affects User Account Security

CVE-2026-103278

What is CVE-2026-103278?

Ghost versions prior to 6.34.0 are prone to an input validation vulnerability located in the admin iframe. This flaw allows attackers with content publishing rights to create malicious pages. When interacted with by active staff users, these pages can facilitate account takeover through inadequate validation mechanisms, compromising user accounts and potentially affecting the integrity of the application. Organizations utilizing affected versions should prioritize updating to ensure robust security.

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