{"id":"CVE-2018-21031","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-21031","generatedAt":"2026-10-29T00:48:55.286Z","title":"Tautulli versions 2.1.38 and below allows remote attackers to bypass intended access control in Plex Media Server because the X-Plex-Token is mishandled and can be retrieved from Tautulli.","description":"Tautulli versions 2.1.38 and below allows remote attackers to bypass intended access control in Plex Media Server because the X-Plex-Token is mishandled and can be retrieved from Tautulli. NOTE: Initially, this id was associated with Plex Media Server 1.18.2.2029-36236cc4c as the affected product and version. Further research indicated that Tautulli is the correct affected product.","published":"2019-11-18T17:15:11.000Z","lastModified":"2026-06-17T01:54:00.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-522"],"affected":["plex/media server"],"epss":{"score":0.02059,"percentile":0.81216,"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 (2.06%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://forums.plex.tv/t/security-regarding-cve-2018-21031/493286","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://twitter.com/GerardFuguet/status/1009937529573912576","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.elladodelmal.com/2018/08/shodan-es-de-cine-hacking-tautulli-un.html","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/docs/47790","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://forums.plex.tv/t/security-regarding-cve-2018-21031/493286","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://twitter.com/GerardFuguet/status/1009937529573912576","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.elladodelmal.com/2018/08/shodan-es-de-cine-hacking-tautulli-un.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/docs/47790","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-21031","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."}