MEDIUM 6.9 NVD
CVE-2026-103276
Ghost versions before 6.20.0 contain a file extension filtering bypass vulnerability that allows unauthenticated attackers to read theme templates and metadata.
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.
References
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-6v8p-3jx9-8chr
- https://www.vulncheck.com/advisories/ghost-before-6.20.0-file-read-via-url-encoding-bypass
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-01 via NVD.
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