{"id":"CVE-2018-16586","aliases":["DEBIAN-CVE-2018-16586","DLA-1521-1","DSA-4317-1","EUVD-2018-8393","GHSA-x292-mprx-3fmj","UBUNTU-CVE-2018-16586"],"status":"published","title":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6...","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","severity":{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01485,"percentile":0.74173,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2018-09-26T00:00:00Z","modified":"2026-08-04T06:04:21Z","fixes":[{"ecosystem":"Debian:11","package":"otrs2","fixed_in":["6.0.11-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:11","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.11-1"}]}],"versions":["2.0.4p01-10","2.0.4p01-11","2.0.4p01-12","2.0.4p01-13","2.0.4p01-14","2.0.4p01-14.1","2.0.4p01-15","2.0.4p01-16","2.0.4p01-17","2.0.4p01-18","2.0.4p01-6","2.0.4p01-7","2.0.4p01-8","2.0.4p01-9","2.0.99beta1-1","2.0.99beta1-2","2.1.1-1","2.1.3-1","2.1.4-1","2.1.4-2","2.1.5-1","2.1.5-2","2.1.5-3","2.1.6-1","2.1.7-1","2.1.7-2","2.2.0~beta2-1","2.2.0~beta3-1","2.2.1-1","2.2.2-1","2.2.3-1","2.2.4-1","2.2.5-1","2.2.5-2","2.2.6-1","2.2.7-1","2.2.7-2","2.2.7-2lenny1","2.2.7-2lenny2","2.2.7-2lenny3","2.2.7-3","2.3.2-1","2.3.2-2","2.3.3-1","2.3.4-1","2.3.4-2","2.3.4-3","2.3.4-4","2.3.4-5","2.3.4-6","2.3.4-7","2.4.10+dfsg1-1","2.4.10+dfsg1-2","2.4.10+dfsg1-3","2.4.5-1","2.4.5-2","2.4.5-3","2.4.5-4","2.4.5-5","2.4.6-1","2.4.6-2","2.4.7+dfsg1-1","2.4.7-1","2.4.7-2","2.4.7-3","2.4.7-4","2.4.7-5","2.4.7-6","2.4.8+dfsg1-1","2.4.9+dfsg1-1","2.4.9+dfsg1-2","2.4.9+dfsg1-3","2.4.9+dfsg1-3+squeeze1","2.4.9+dfsg1-3+squeeze3","2.4.9+dfsg1-3+squeeze4","2.4.9+dfsg1-3+squeeze5","2.4.9+dfsg1-4","2.4.9+dfsg1-5","3.0.10+dfsg1-1","3.0.10+dfsg1-2","3.0.11+dfsg1-1","3.0.8+dfsg1-1","3.0.9+dfsg1-1","3.1.0~beta4+dfsg1-1","3.1.0~beta5+dfsg1-1","3.1.0~rc1+dfsg1-1","3.1.1+dfsg1-1","3.1.1+dfsg1-2","3.1.10+dfsg1-1","3.1.11+dfsg1-1","3.1.12+dfsg1-1","3.1.12+dfsg1-2","3.1.12+dfsg1-3","3.1.2+dfsg1-1","3.1.2+dfsg1-2","3.1.2+dfsg1-3","3.1.3+dfsg1-1","3.1.3+dfsg1-2","3.1.4+dfsg1-1","3.1.5+dfsg1-1","3.1.5+dfsg1-2","3.1.5+dfsg1-3","3.1.6+dfsg1-1","3.1.7+dfsg1-1","3.1.7+dfsg1-2","3.1.7+dfsg1-3","3.1.7+dfsg1-4","3.1.7+dfsg1-5","3.1.7+dfsg1-6","3.1.7+dfsg1-7","3.1.7+dfsg1-8","3.1.8+dfsg1-1","3.1.9+dfsg1-1","3.2.1+dfsg1-1","3.2.10-1","3.2.10-2","3.2.11-1","3.2.11-1~bpo70+1","3.2.12-1","3.2.2+dfsg1-1","3.2.3+dfsg1-1","3.2.4-1","3.2.5-1","3.2.6-1","3.2.6-2","3.2.7-1","3.2.7-2","3.2.8-1","3.2.9-1","3.2.9-2","3.3.1-1","3.3.10-1","3.3.11-1","3.3.18-1~deb7u1","3.3.18-1~deb7u2","3.3.18-1~deb7u3","3.3.2-1","3.3.3-1","3.3.3-2","3.3.3-3","3.3.4-1","3.3.5-1","3.3.6-1","3.3.7-1","3.3.7-2","3.3.8-1","3.3.9-1","3.3.9-2","3.3.9-3","3.3.9-3~bpo70+1","4.0.10-1","4.0.11-1","4.0.12-1","4.0.13-1","4.0.13-1~bpo8+1","4.0.5-1","4.0.5-2","4.0.6-1","4.0.7-1","4.0.7-2","4.0.8-1","4.0.9-1","5.0.1-1","5.0.1-2","5.0.10-1","5.0.10-1~bpo8+1","5.0.11-1","5.0.12-1","5.0.13-1","5.0.13-1~bpo8+1","5.0.13-2","5.0.14-1","5.0.14-1~bpo8+1","5.0.15-1","5.0.16-1","5.0.16-1~bpo8+1","5.0.17-1","5.0.18-1","5.0.19-1","5.0.2-1","5.0.20-1","5.0.21-1","5.0.21-1~bpo9+1","5.0.22-1","5.0.23-1","5.0.23-1~bpo9+1","5.0.24-1","5.0.24-1~bpo9+1","5.0.3-1","5.0.5-1","5.0.6-1","5.0.6-1~bpo8+1","5.0.7-1","5.0.8+dfsg1-1","5.0.8-1","5.0.8-1~bpo8+1","5.0.9+dfsg1-1","5.0.9+repack1-1","6.0.1-1","6.0.10-1","6.0.11-1~bpo9+1","6.0.2-1","6.0.3-1","6.0.4-1","6.0.5-1","6.0.6-1","6.0.7-1","6.0.8-1","6.0.8-1~bpo9+1","6.0.9-1","6.0.9-1~bpo9+1"]},{"source":"osv","ecosystem":"Debian:8","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.18-1+deb8u6"}]}],"versions":["3.3.10-1","3.3.11-1","3.3.18-1+deb8u1","3.3.18-1+deb8u2","3.3.18-1+deb8u3","3.3.18-1+deb8u4","3.3.18-1+deb8u5","3.3.18-1~deb7u1","3.3.18-1~deb7u2","3.3.18-1~deb7u3","3.3.9-3","3.3.9-3+deb8u1"],"bundled":2},{"source":"osv","ecosystem":"Debian:9","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.16-1+deb9u6"}]}],"versions":["2.0.4p01-10","2.0.4p01-11","2.0.4p01-12","2.0.4p01-13","2.0.4p01-14","2.0.4p01-14.1","2.0.4p01-15","2.0.4p01-16","2.0.4p01-17","2.0.4p01-18","2.0.4p01-6","2.0.4p01-7","2.0.4p01-8","2.0.4p01-9","2.0.99beta1-1","2.0.99beta1-2","2.1.1-1","2.1.3-1","2.1.4-1","2.1.4-2","2.1.5-1","2.1.5-2","2.1.5-3","2.1.6-1","2.1.7-1","2.1.7-2","2.2.0~beta2-1","2.2.0~beta3-1","2.2.1-1","2.2.2-1","2.2.3-1","2.2.4-1","2.2.5-1","2.2.5-2","2.2.6-1","2.2.7-1","2.2.7-2","2.2.7-2lenny1","2.2.7-2lenny2","2.2.7-2lenny3","2.2.7-3","2.3.2-1","2.3.2-2","2.3.3-1","2.3.4-1","2.3.4-2","2.3.4-3","2.3.4-4","2.3.4-5","2.3.4-6","2.3.4-7","2.4.10+dfsg1-1","2.4.10+dfsg1-2","2.4.10+dfsg1-3","2.4.5-1","2.4.5-2","2.4.5-3","2.4.5-4","2.4.5-5","2.4.6-1","2.4.6-2","2.4.7+dfsg1-1","2.4.7-1","2.4.7-2","2.4.7-3","2.4.7-4","2.4.7-5","2.4.7-6","2.4.8+dfsg1-1","2.4.9+dfsg1-1","2.4.9+dfsg1-2","2.4.9+dfsg1-3","2.4.9+dfsg1-3+squeeze1","2.4.9+dfsg1-3+squeeze3","2.4.9+dfsg1-3+squeeze4","2.4.9+dfsg1-3+squeeze5","2.4.9+dfsg1-4","2.4.9+dfsg1-5","3.0.10+dfsg1-1","3.0.10+dfsg1-2","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Advisory","fix","report"]},{"url":"https://www.debian.org/security/2018/dsa-4317","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00033.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party 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send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2018-09-28T00:00:00Z","modified":"2024-08-05T10:24:32.876Z","updated_at":"2026-11-02T14:35:11.072321Z"}],"euvd":[{"id":"EUVD-2018-8393","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2018-09-28T00:00:00Z","modified":"2024-08-05T10:24:32Z","updated_at":"2026-11-03T02:39:41.299131Z"}],"ghsa":[{"id":"GHSA-x292-mprx-3fmj","title":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6...","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2022-05-13T01:19:15Z","modified":"2023-02-01T05:05:40Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T14:50:16.372723Z"}],"nvd":[{"id":"CVE-2018-16586","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2018-09-28T00:29:01.633Z","modified":"2026-06-17T01:44:30.433Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:04:42.52179Z"}],"osv":[{"id":"CVE-2018-16586","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2018-09-28T00:29:01.633Z","modified":"2026-03-15T22:19:23.915269Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:08.533609Z"},{"id":"DEBIAN-CVE-2018-16586","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2018-09-28T00:29:01.633Z","modified":"2026-08-04T06:04:21.902897717Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.290351Z"},{"id":"UBUNTU-CVE-2018-16586","description":"In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.","status":"published","published":"2018-09-28T00:29:00Z","modified":"2025-10-24T04:47:12Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:17.496046Z"},{"id":"DLA-1521-1","title":"otrs2 - security update","status":"published","published":"2018-09-26T00:00:00Z","modified":"2026-03-09T01:01:05.515553Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DSA-4317-1","title":"otrs2 - security update","status":"published","published":"2018-10-14T00:00:00Z","modified":"2026-03-09T02:11:23.781085Z","updated_at":"2026-11-02T15:46:16.862196Z"}]}}