{"id":"CVE-2019-0558","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-0558","generatedAt":"2026-10-28T21:32:11.094Z","title":"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…","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, Microsoft Business Productivity Servers. This CVE ID is unique from CVE-2019-0556, CVE-2019-0557.","published":"2019-01-08T21:29:01.000Z","lastModified":"2026-06-17T02:08:25.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["microsoft/business productivity servers","microsoft/sharepoint server"],"epss":{"score":0.01996,"percentile":0.80612,"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":"low","text":"Lower severity and a low EPSS score (2.00%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/106389","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0558","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/106389","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0558","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-0558","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."}