{"id":"CVE-2020-10254","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-10254","generatedAt":"2026-10-27T20:22:25.211Z","title":"An attacker can bypass authentication on a password-protected image by displaying its preview.","description":"An issue was discovered in ownCloud before 10.4. An attacker can bypass authentication on a password-protected image by displaying its preview.","published":"2021-02-19T07:15:13.000Z","lastModified":"2026-06-17T02:47:34.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-287"],"affected":["owncloud/owncloud"],"epss":{"score":0.01944,"percentile":0.80018,"date":"2026-10-26","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 (1.94%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://owncloud.com/security-advisories/public-link-password-bypass-via-image-previews/","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://owncloud.org/changelog/server/","tags":["Product","Release Notes"],"source":"cve@mitre.org"},{"url":"https://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://owncloud.com/security-advisories/public-link-password-bypass-via-image-previews/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://owncloud.org/changelog/server/","tags":["Product","Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-10254","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."}