{"id":"CVE-2026-52850","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-52850","generatedAt":"2026-10-27T23:56:37.648Z","title":"Docmost is open-source collaborative wiki and documentation software.","description":"Docmost is open-source collaborative wiki and documentation software. Prior to 0.90.1, an authenticated workspace member who does not belong to a private space can call the transclusion / sync-block lookup API with a known sourcePageId and transclusionId pair because the lookup does not enforce private space membership before resolving the source page. The API can return confidential sync-block content and source page metadata even though the normal page APIs deny access to the same page. This issue is fixed in version 0.90.1.","published":"2026-09-24T19:17:14.000Z","lastModified":"2026-09-29T04:17:56.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-639","CWE-862"],"affected":[],"epss":{"score":0.00193,"percentile":0.08861,"date":"2026-10-26","history":[{"date":"2026-09-25","score":0.00193,"percentile":0.07961}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-24T19:17:14.000Z","detail":{"score":"4.3","severity":"MEDIUM","publishedAt":"2026-09-24T19:17:13.930Z"},"summary":"New CVE, medium severity (CVSS 4.3)."}],"references":[{"url":"https://github.com/docmost/docmost/commit/830b5b4d458a1302f42c8b68bff9ff559f6eb342","source":"security-advisories@github.com"},{"url":"https://github.com/docmost/docmost/releases/tag/v0.90.1","source":"security-advisories@github.com"},{"url":"https://github.com/docmost/docmost/security/advisories/GHSA-5vhf-cgf2-c9cq","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-52850","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}