{"id":"CVE-2026-105630","state":"PUBLISHED","title":"Plane: Stored XSS via SVG attachment served inline on the application origin (account takeover)","description":"Plane is an open-source project management tool. Prior to 1.4.0, an authenticated low-privilege workspace member, including a Guest, can upload an image/svg+xml file as a generic or issue attachment. The file retains the attacker-controlled Content-Type, and the asset-download endpoint creates a presigned URL with Content-Disposition: inline. In the default self-hosted MinIO deployment, the asset URL is served from the same origin as the Plane application, allowing embedded SVG JavaScript to execute in the application's security context. A victim, including a workspace administrator, who opens the link can have the session compromised through stored XSS, leading to account takeover. This issue is fixed in 1.4.0.","publishedAt":"2026-10-05T17:54:01.999Z","updatedAt":"2026-10-05T18:41:01.196Z","severity":{"score":8.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["makeplane plane"],"affected":[{"vendor":"makeplane","product":"plane","versions":[{"version":"< 1.4.0","status":"affected"}]}],"references":["https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h","https://github.com/makeplane/plane/pull/9312","https://github.com/makeplane/plane/commit/9dff20e04808286acb372119d88c666b802b1d50","https://github.com/makeplane/plane/releases/tag/v1.4.0"],"weaknesses":["CWE-79","CWE-434","CWE-616"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105630.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105630","state":"PUBLISHED","datePublished":"2026-10-05T17:54:01.999Z","dateUpdated":"2026-10-05T18:41:01.196Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T16:40:39.611Z"},"containers":{"cna":{"title":"Plane: Stored XSS via SVG attachment served inline on the application origin (account takeover)","descriptions":[{"lang":"en","value":"Plane is an open-source project management tool. Prior to 1.4.0, an authenticated low-privilege workspace member, including a Guest, can upload an image/svg+xml file as a generic or issue attachment. The file retains the attacker-controlled Content-Type, and the asset-download endpoint creates a presigned URL with Content-Disposition: inline. In the default self-hosted MinIO deployment, the asset URL is served from the same origin as the Plane application, allowing embedded SVG JavaScript to execute in the application's security context. A victim, including a workspace administrator, who opens the link can have the session compromised through stored XSS, leading to account takeover. This issue is fixed in 1.4.0."}],"affected":[{"vendor":"makeplane","product":"plane","versions":[{"version":"< 1.4.0","status":"affected"}]}],"references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h","name":"https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/makeplane/plane/pull/9312","name":"https://github.com/makeplane/plane/pull/9312","tags":["x_refsource_MISC"]},{"url":"https://github.com/makeplane/plane/commit/9dff20e04808286acb372119d88c666b802b1d50","name":"https://github.com/makeplane/plane/commit/9dff20e04808286acb372119d88c666b802b1d50","tags":["x_refsource_MISC"]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","name":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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"}]},{"descriptions":[{"cweId":"CWE-434","lang":"en","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-616","lang":"en","description":"CWE-616: Incomplete Identification of Uploaded File Variables (PHP)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-05T17:54:01.999Z"},"source":{"advisory":"GHSA-ch8j-vr4r-qf6h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T18:40:36.143539Z","id":"CVE-2026-105630","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-05T18:41:01.196Z"}}]}}}