{"id":"CVE-2025-58351","state":"PUBLISHED","title":"Outline's Local File Storage Feature can Cause CSP Bypass","description":"Outline is a service that allows for collaborative documentation. In versions 0.72.0 through 0.83.0, Outline introduced a feature which facilitates local file system storage capabilities as an optional file storage strategy. This feature allowed a CSP bypass as well as a ContentType bypass that might facilitate further attacks. In the case of self-hosting and using Outline FILE_STORAGE=local on the same domain as the Outline application, a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions, allowing script execution within the context of another user. This is fixed in version 0.84.0.","publishedAt":"2025-09-03T03:20:54.579Z","updatedAt":"2025-09-03T15:44:28.350Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["outline outline"],"affected":[{"vendor":"outline","product":"outline","versions":[{"version":">= 0.72.0, < 0.84.0","status":"affected"}]}],"references":["https://github.com/outline/outline/security/advisories/GHSA-gcj7-c9jv-fhgf","https://github.com/outline/outline/commit/18bc93c9c207329244c6909606a2393e863892a3","https://github.com/outline/outline/releases/tag/v0.84.0"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/58xxx/CVE-2025-58351.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-58351","state":"PUBLISHED","datePublished":"2025-09-03T03:20:54.579Z","dateUpdated":"2025-09-03T15:44:28.350Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-08-29T16:19:59.009Z"},"containers":{"cna":{"title":"Outline's Local File Storage Feature can Cause CSP Bypass","descriptions":[{"lang":"en","value":"Outline is a service that allows for collaborative documentation. In versions 0.72.0 through 0.83.0, Outline introduced a feature which facilitates local file system storage capabilities as an optional file storage strategy. This feature allowed a CSP bypass as well as a ContentType bypass that might facilitate further attacks. In the case of self-hosting and using Outline FILE_STORAGE=local on the same domain as the Outline application, a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions, allowing script execution within the context of another user. This is fixed in version 0.84.0."}],"affected":[{"vendor":"outline","product":"outline","versions":[{"version":">= 0.72.0, < 0.84.0","status":"affected"}]}],"references":[{"url":"https://github.com/outline/outline/security/advisories/GHSA-gcj7-c9jv-fhgf","name":"https://github.com/outline/outline/security/advisories/GHSA-gcj7-c9jv-fhgf","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/outline/outline/commit/18bc93c9c207329244c6909606a2393e863892a3","name":"https://github.com/outline/outline/commit/18bc93c9c207329244c6909606a2393e863892a3","tags":["x_refsource_MISC"]},{"url":"https://github.com/outline/outline/releases/tag/v0.84.0","name":"https://github.com/outline/outline/releases/tag/v0.84.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","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":"2025-09-03T03:20:54.579Z"},"source":{"advisory":"GHSA-gcj7-c9jv-fhgf","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-09-03T13:46:57.802702Z","id":"CVE-2025-58351","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":"2025-09-03T15:44:28.350Z"}}]}}}