CVE-2026-70596

{"id": "CVE-2026-70596", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-70596", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-05T17:31:33.896500Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 0.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "TryGhost", "product": "Ghost", "versions": [{"status": "affected", "version": ">= 4.9.0, < 6.54.1"}]}]}], "published": "2026-08-05T16:17:03.463", "references": [{"url": "https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e", "source": "security-advisories@github.com"}, {"url": "https://github.com/TryGhost/Ghost/pull/29635", "source": "security-advisories@github.com"}, {"url": "https://github.com/TryGhost/Ghost/releases/tag/v6.54.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin session, resulting in privilege escalation. This issue is fixed in 6.54.1."}], "lastModified": "2026-09-08T20:51:43.490", "sourceIdentifier": "security-advisories@github.com"}