{"id":"CVE-2018-8426","aliases":["EUVD-2018-20062","GHSA-87vw-7wf8-wpfx"],"status":"published","title":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not...","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka \"Microsoft Office SharePoint XSS Vulnerability.\" This affects Microsoft SharePoint Server, Microsoft SharePoint.","severity":{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02253,"percentile":0.83033,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2018-09-13T00:00:00Z","modified":"2026-06-17T02:04:50Z","products":[{"vendor":"microsoft","product":"microsoft sharepoint"},{"vendor":"microsoft","product":"microsoft sharepoint server"},{"vendor":"microsoft","product":"sharepoint_enterprise_server_2013"},{"vendor":"microsoft","product":"sharepoint_enterprise_server_2016"},{"vendor":"microsoft","product":"sharepoint_server_2010"}],"references":[{"url":"http://www.securityfocus.com/bid/105208","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8426","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1041640","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8426"},{"url":"https://github.com/advisories/GHSA-87vw-7wf8-wpfx"}],"sources":{"cve":[{"id":"CVE-2018-8426","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka \"Microsoft Office SharePoint XSS Vulnerability.\" This affects Microsoft SharePoint Server, Microsoft SharePoint.","status":"published","published":"2018-09-13T00:00:00Z","modified":"2024-08-05T06:54:36.341Z","updated_at":"2026-11-02T14:35:04.540365Z"}],"euvd":[{"id":"EUVD-2018-20062","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka \"Microsoft Office SharePoint XSS Vulnerability.\" This affects Microsoft SharePoint Server, Microsoft SharePoint.","status":"published","published":"2018-09-13T00:00:00Z","modified":"2024-08-05T06:54:36Z","updated_at":"2026-11-03T02:40:03.169087Z"}],"ghsa":[{"id":"GHSA-87vw-7wf8-wpfx","title":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not...","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka \"Microsoft Office SharePoint XSS Vulnerability.\" This affects Microsoft SharePoint Server, Microsoft SharePoint.","status":"published","published":"2022-05-14T02:02:28Z","modified":"2023-02-02T05:05:15Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:52:03.084435Z"}],"nvd":[{"id":"CVE-2018-8426","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka \"Microsoft Office SharePoint XSS Vulnerability.\" This affects Microsoft SharePoint Server, Microsoft SharePoint.","status":"published","published":"2018-09-13T00:29:02.943Z","modified":"2026-06-17T02:04:50.69Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:38.672108Z"}]}}