{"id":"CVE-2018-9846","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-9846","generatedAt":"2026-10-28T23:13:06.455Z","title":"In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled \"_uid\" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to…","description":"In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled \"_uid\" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.","published":"2018-04-07T21:29:00.000Z","lastModified":"2026-06-17T02:07:17.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-20"],"affected":["roundcube/webmail","debian/debian linux"],"epss":{"score":0.02283,"percentile":0.83063,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/roundcube/roundcubemail/issues/6229","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/roundcube/roundcubemail/issues/6238","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4181","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/roundcube/roundcubemail/issues/6229","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/roundcube/roundcubemail/issues/6238","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4181","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-9846","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."}