{"id":"CVE-2017-17476","aliases":["DEBIAN-CVE-2017-17476","DLA-1215-1","DSA-4069-1","EUVD-2017-8638","GHSA-q5mp-v3f3-grhm","UBUNTU-CVE-2017-17476"],"status":"published","title":"Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0...","description":"Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.","severity":{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02223,"percentile":0.82812,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2017-12-20T00:00:00Z","modified":"2026-08-04T05:47:39Z","fixes":[{"ecosystem":"Debian:11","package":"otrs2","fixed_in":["6.0.3-1"],"sources":["osv"]},{"ecosystem":"Debian:7","package":"otrs2","fixed_in":["3.3.18-1~deb7u3"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"otrs2","fixed_in":["3.3.18-1+deb8u4"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"otrs2","fixed_in":["5.0.16-1+deb9u5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:11","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.3-1"}]}],"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","6.0.2-1"]},{"source":"osv","ecosystem":"Debian:7","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.18-1~deb7u3"}]}],"versions":["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","3.1.7+dfsg1-8","3.1.7+dfsg1-8+deb7u1","3.1.7+dfsg1-8+deb7u2","3.1.7+dfsg1-8+deb7u3","3.1.7+dfsg1-8+deb7u4","3.1.7+dfsg1-8+deb7u5","3.1.7+dfsg1-8+deb7u6","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","3.3.2-1","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"]},{"source":"osv","ecosystem":"Debian:8","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.18-1+deb8u4"}]}],"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~deb7u1","3.3.18-1~deb7u2","3.3.18-1~deb7u3","3.3.9-3","3.3.9-3+deb8u1"]},{"source":"osv","ecosystem":"Debian:9","package":"otrs2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.16-1+deb9u5"}]}],"versions":["2.0.4p01-10","2.0.4p01-11","2.0.4p01-12","2.0.4p01-13","2.0.4p01-14","2.0.4p01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Party Advisory","fix","report"]},{"url":"https://www.otrs.com/security-advisory-2017-10-security-update-otrs-framework/","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix","report"]},{"url":"https://github.com/OTRS/otrs/commit/36e3be99cfe8a9e09afa1b75fdc39f3e28f561fc","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://www.debian.org/security/2017/dsa-4069","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2017/12/msg00018.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://github.com/OTRS/otrs/commit/26707eaaa791648e6c7ad6aeaa27efd70e7c66eb","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-17476"},{"url":"https://www.otrs.com/security-advisory-2017-10-security-update-otrs-framework"},{"url":"https://github.com/advisories/GHSA-q5mp-v3f3-grhm"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-17476","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-17476","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-17476","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-17476","description":"Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.","status":"published","published":"2017-12-20T17:00:00Z","modified":"2024-08-05T20:51:31.543Z","updated_at":"2026-11-02T14:33:18.248329Z"}],"euvd":[{"id":"EUVD-2017-8638","description":"Open Ticket Request System (OTRS) 4.0.x before 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