{"id":"CVE-2026-70596","state":"PUBLISHED","title":"Ghost: Cross-Site Scripting in Feature Image Captions","description":"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.","publishedAt":"2026-08-05T14:40:12.295Z","updatedAt":"2026-08-05T17:32:38.429Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["TryGhost Ghost"],"affected":[{"vendor":"TryGhost","product":"Ghost","versions":[{"version":">= 4.9.0, < 6.54.1","status":"affected"}]}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv","https://github.com/TryGhost/Ghost/pull/29635","https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","https://github.com/TryGhost/Ghost/releases/tag/v6.54.1"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/70xxx/CVE-2026-70596.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-70596","state":"PUBLISHED","datePublished":"2026-08-05T14:40:12.295Z","dateUpdated":"2026-08-05T17:32:38.429Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-04T19:50:27.328Z"},"containers":{"cna":{"title":"Ghost: Cross-Site Scripting in Feature Image Captions","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."}],"affected":[{"vendor":"TryGhost","product":"Ghost","versions":[{"version":">= 4.9.0, < 6.54.1","status":"affected"}]}],"references":[{"url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv","name":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/TryGhost/Ghost/pull/29635","name":"https://github.com/TryGhost/Ghost/pull/29635","tags":["x_refsource_MISC"]},{"url":"https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","name":"https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","tags":["x_refsource_MISC"]},{"url":"https://github.com/TryGhost/Ghost/releases/tag/v6.54.1","name":"https://github.com/TryGhost/Ghost/releases/tag/v6.54.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-05T14:40:52.224Z"},"source":{"advisory":"GHSA-pr22-p9rp-2cqv","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T17:31:33.896500Z","id":"CVE-2026-70596","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-05T17:32:38.429Z"}}]}}}