{"id":"CVE-2026-49453","state":"PUBLISHED","title":"Joplin: Path traversal in resource sync — silent arbitrary file write outside the resource directory","description":"Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.6.15 and 3.7.2, Joplin accepts synchronized resource metadata whose id or file_extension contains parent-directory or path-separator characters. BaseItem.unserialize() stores the unvalidated fields, resourceFilename() concatenates them into a destination path, and ResourceFetcher writes the attacker-controlled resource blob outside the resource directory during background synchronization. An attacker with write access to a configured sync target or shared notebook can create or overwrite files at an attacker-chosen existing path without user interaction. This issue is fixed in versions 3.6.15 and 3.7.2.","publishedAt":"2026-09-21T20:50:28.455Z","updatedAt":"2026-09-22T13:31:37.953Z","severity":{"score":7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["laurent22 joplin"],"affected":[{"vendor":"laurent22","product":"joplin","versions":[{"version":"< 3.6.15","status":"affected"},{"version":">= 3.7.0, < 3.7.2","status":"affected"}]}],"references":["https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf","https://github.com/laurent22/joplin/pull/15540","https://github.com/laurent22/joplin/pull/15672","https://github.com/laurent22/joplin/commit/18e0b08c282c89ae51612c4eff67af2a45ff5163","https://github.com/laurent22/joplin/commit/50518073740c4501058e366300b42c2f1925cb05"],"weaknesses":["CWE-20","CWE-22"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/49xxx/CVE-2026-49453.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49453","state":"PUBLISHED","datePublished":"2026-09-21T20:50:28.455Z","dateUpdated":"2026-09-22T13:31:37.953Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-30T02:43:33.107Z"},"containers":{"cna":{"title":"Joplin: Path traversal in resource sync — silent arbitrary file write outside the resource directory","descriptions":[{"lang":"en","value":"Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.6.15 and 3.7.2, Joplin accepts synchronized resource metadata whose id or file_extension contains parent-directory or path-separator characters. BaseItem.unserialize() stores the unvalidated fields, resourceFilename() concatenates them into a destination path, and ResourceFetcher writes the attacker-controlled resource blob outside the resource directory during background synchronization. An attacker with write access to a configured sync target or shared notebook can create or overwrite files at an attacker-chosen existing path without user interaction. This issue is fixed in versions 3.6.15 and 3.7.2."}],"affected":[{"vendor":"laurent22","product":"joplin","versions":[{"version":"< 3.6.15","status":"affected"},{"version":">= 3.7.0, < 3.7.2","status":"affected"}]}],"references":[{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf","name":"https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/laurent22/joplin/pull/15540","name":"https://github.com/laurent22/joplin/pull/15540","tags":["x_refsource_MISC"]},{"url":"https://github.com/laurent22/joplin/pull/15672","name":"https://github.com/laurent22/joplin/pull/15672","tags":["x_refsource_MISC"]},{"url":"https://github.com/laurent22/joplin/commit/18e0b08c282c89ae51612c4eff67af2a45ff5163","name":"https://github.com/laurent22/joplin/commit/18e0b08c282c89ae51612c4eff67af2a45ff5163","tags":["x_refsource_MISC"]},{"url":"https://github.com/laurent22/joplin/commit/50518073740c4501058e366300b42c2f1925cb05","name":"https://github.com/laurent22/joplin/commit/50518073740c4501058e366300b42c2f1925cb05","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-21T20:51:08.466Z"},"source":{"advisory":"GHSA-r24r-gp6h-cwgf","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T13:31:17.285182Z","id":"CVE-2026-49453","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-22T13:31:37.953Z"}}]}}}