{"id":"CVE-2017-0894","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-0894","generatedAt":"2026-10-28T20:48:24.085Z","title":"Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error.","description":"Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error. Thus granting an attacker potentially access to publicly shared calendars without knowing the share token.","published":"2017-05-08T20:29:00.000Z","lastModified":"2026-06-17T00:58:29.000Z","status":"Modified","sourceIdentifier":"support@hackerone.com","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"},"cwe":["CWE-285","CWE-863"],"affected":["nextcloud/nextcloud server"],"epss":{"score":0.01169,"percentile":0.67233,"date":"2026-10-27","history":[]},"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 (1.17%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://hackerone.com/reports/218876","tags":["Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://nextcloud.com/security/advisory/?id=nc-sa-2017-011","tags":["Broken Link","Patch","Vendor Advisory"],"source":"support@hackerone.com"},{"url":"https://hackerone.com/reports/218876","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nextcloud.com/security/advisory/?id=nc-sa-2017-011","tags":["Broken Link","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-0894","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."}