{"id":"CVE-2016-9415","aliases":["EUVD-2016-10225","GHSA-4484-gfhj-qfpj"],"status":"published","title":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows...","description":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to \"style import.\"","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01861,"percentile":0.79393,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2017-01-31T22:00:00Z","modified":"2026-06-17T00:55:59Z","products":[{"vendor":"mybb","product":"merge_system"},{"vendor":"mybb","product":"mybb"}],"references":[{"url":"https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release/","tags":["x_refsource_CONFIRM","x_transferred","Patch","Release Notes","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/11/18/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Patch","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/11/10/8","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Patch","Third Party Advisory"]},{"url":"http://www.securityfocus.com/bid/94396","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-9415"},{"url":"https://blog.mybb.com/2016/10/17/mybb-1-8-8-merge-system-1-8-8-release"},{"url":"https://github.com/advisories/GHSA-4484-gfhj-qfpj"}],"sources":{"cve":[{"id":"CVE-2016-9415","description":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to \"style import.\"","status":"published","published":"2017-01-31T22:00:00Z","modified":"2024-08-06T02:50:38.036Z","updated_at":"2026-11-02T14:33:31.764001Z"}],"euvd":[{"id":"EUVD-2016-10225","description":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to \"style import.\"","status":"published","published":"2017-01-31T22:00:00Z","modified":"2024-08-06T02:50:38Z","updated_at":"2026-11-03T02:22:27.235814Z"}],"ghsa":[{"id":"GHSA-4484-gfhj-qfpj","title":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows...","description":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to \"style import.\"","status":"published","published":"2022-05-17T03:01:42Z","modified":"2025-04-20T03:32:08Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:01:39.626411Z"}],"nvd":[{"id":"CVE-2016-9415","description":"MyBB (aka MyBulletinBoard) before 1.8.8 on Windows and MyBB Merge System before 1.8.8 on Windows allow remote attackers to overwrite arbitrary CSS files via vectors related to \"style import.\"","status":"published","published":"2017-01-31T22:59:01.533Z","modified":"2026-06-17T00:55:59.73Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:03:35.029632Z"}]}}