{"cve":"CVE-2017-11820","nvd":{"published":"2017-10-13T13:29:01.847","modified":"2026-06-17T01:02:25.593","status":"Modified","description":"Microsoft SharePoint Enterprise Server 2013 SP1 and Microsoft SharePoint Enterprise Server 2016 allow an attacker to exploit a cross-site scripting (XSS) vulnerability by sending a specially crafted request to an affected SharePoint server, due to how SharePoint Server sanitizes web requests, aka \"Microsoft Office SharePoint XSS Vulnerability\". This CVE ID is unique from CVE-2017-11775 and CVE-2017-11777.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["http://www.securityfocus.com/bid/101097","http://www.securitytracker.com/id/1039540","https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11820","http://www.securityfocus.com/bid/101097","http://www.securitytracker.com/id/1039540"],"products":["microsoft:sharepoint_enterprise_server"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2017-11820","score":0.02267,"percentile":0.83033,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}