[ CVE-2026-103276 · Published 1 Oct 2026 ]
Vulnerability in TryGhost Ghost
CVSS 5.3
EPSS <1%No fix listed yet
[ Description ]Official description
Ghost versions before 6.20.0 contain a file extension filtering bypass vulnerability that allows unauthenticated attackers to read theme templates and metadata. Attackers can use URL encoding to bypass extension validation and access sensitive theme files.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.