{"id":"CVE-2018-6806","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-6806","generatedAt":"2026-10-28T23:38:39.611Z","title":"Marked 2 through 2.5.11 allows remote attackers to read arbitrary files via a crafted HTML document that triggers a redirect to an x-marked://preview?text= URL.","description":"Marked 2 through 2.5.11 allows remote attackers to read arbitrary files via a crafted HTML document that triggers a redirect to an x-marked://preview?text= URL. The value of the text parameter can include arbitrary JavaScript code, e.g., making XMLHttpRequest calls.","published":"2018-02-07T05:29:00.000Z","lastModified":"2026-06-17T02:02:18.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["marked 2 project/marked 2"],"epss":{"score":0.01198,"percentile":0.67963,"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 (1.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://support.markedapp.com/discussions/questions/9089-reporting-a-vulnerability","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.lynxsecurity.io/releases/Local%20File%20Disclosure%20in%20Marked2.pdf","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://support.markedapp.com/discussions/questions/9089-reporting-a-vulnerability","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.lynxsecurity.io/releases/Local%20File%20Disclosure%20in%20Marked2.pdf","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-6806","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."}