{"schema":"threatline.record/2","record":{"id":"CVE-2026-103276","aliases":["GHSA-6v8p-3jx9-8chr"],"summary":"Ghost before 6.20.0 File Read via URL Encoding Bypass","details":"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.","categories":["Applications & CMS"],"product":"Ghost","vendor":"TryGhost","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103276","source_modified_at":"2026-10-01T13:34:52.840Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Ghost","vendor":"TryGhost","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"6.20.0"},{"version":"6.20.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103276","source_modified_at":"2026-10-01T13:34:52.840Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Ghost","ecosystem":null},"version":"6.20.0","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00226,"percentile":0.1257,"score_date":"2026-10-23"},"published_at":"2026-10-01T10:42:13.916Z","modified_at":"2026-10-01T13:34:52.840Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103276","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-01T13:34:52.840Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103276","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-6v8p-3jx9-8chr","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/ghost-before-6.20.0-file-read-via-url-encoding-bypass","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-01T13:34:31.162544Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-01T13:34:52.840Z","content_hash":"7e0ee232958df3442ebd5ee270e5c7fc300b64634f00acca1fb789c515106957"}}