{"id":"CVE-2026-68559","state":"PUBLISHED","title":"Wekan: Broken access control in the Excel-export route (`/api/boards/:boardId/exportExcel`)","description":"Wekan is open source kanban built with Meteor. From 9.57 until 9.74, the /api/boards/:boardId/exportExcel route in models/exportExcel.js called the asynchronous exporterExcel.canExport(user) authorization guard from models/server/ExporterExcel.js without awaiting it. The returned Promise was always truthy, so exporterExcel.build(res) ran even when board.isVisibleBy(user) would deny access, allowing any authenticated non-member to download private board card titles, descriptions, lists, swimlanes, members, and metadata. This issue is fixed in version 9.74.","publishedAt":"2026-08-19T19:20:32.150Z","updatedAt":"2026-08-19T19:38:29.386Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["wekan wekan"],"affected":[{"vendor":"wekan","product":"wekan","versions":[{"version":">= 9.57, < 9.74","status":"affected"}]}],"references":["https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533","https://github.com/wekan/wekan/commit/7bbd1a3fad5d868fd01d79b5908913e215698e8e","https://github.com/wekan/wekan/releases/tag/v9.74"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68559.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68559","state":"PUBLISHED","datePublished":"2026-08-19T19:20:32.150Z","dateUpdated":"2026-08-19T19:38:29.386Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-30T19:56:44.102Z"},"containers":{"cna":{"title":"Wekan: Broken access control in the Excel-export route (`/api/boards/:boardId/exportExcel`)","descriptions":[{"lang":"en","value":"Wekan is open source kanban built with Meteor. From 9.57 until 9.74, the /api/boards/:boardId/exportExcel route in models/exportExcel.js called the asynchronous exporterExcel.canExport(user) authorization guard from models/server/ExporterExcel.js without awaiting it. The returned Promise was always truthy, so exporterExcel.build(res) ran even when board.isVisibleBy(user) would deny access, allowing any authenticated non-member to download private board card titles, descriptions, lists, swimlanes, members, and metadata. This issue is fixed in version 9.74."}],"affected":[{"vendor":"wekan","product":"wekan","versions":[{"version":">= 9.57, < 9.74","status":"affected"}]}],"references":[{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533","name":"https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/wekan/wekan/commit/7bbd1a3fad5d868fd01d79b5908913e215698e8e","name":"https://github.com/wekan/wekan/commit/7bbd1a3fad5d868fd01d79b5908913e215698e8e","tags":["x_refsource_MISC"]},{"url":"https://github.com/wekan/wekan/releases/tag/v9.74","name":"https://github.com/wekan/wekan/releases/tag/v9.74","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-19T19:20:32.150Z"},"source":{"advisory":"GHSA-mwq8-ccpm-r533","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-19T19:36:32.021362Z","id":"CVE-2026-68559","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":"2026-08-19T19:38:29.386Z"}}]}}}