{"id":"CVE-2020-0903","aliases":["EUVD-2020-2371","GHSA-5fpx-mqj4-mr33"],"status":"published","title":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not...","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01649,"percentile":0.76701,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2020-03-12T15:48:58Z","modified":"2026-06-17T02:46:56Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 14"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 15"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 3"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 4"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0903","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0903"},{"url":"https://github.com/advisories/GHSA-5fpx-mqj4-mr33"}],"sources":{"cve":[{"id":"CVE-2020-0903","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.","status":"published","published":"2020-03-12T15:48:58Z","modified":"2025-02-28T20:11:27.037Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:00.280422Z"}],"euvd":[{"id":"EUVD-2020-2371","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.","status":"published","published":"2020-03-12T15:48:58Z","modified":"2025-02-28T20:11:27Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:53:19.078289Z"}],"ghsa":[{"id":"GHSA-5fpx-mqj4-mr33","title":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not...","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.","status":"published","published":"2022-05-24T17:11:04Z","modified":"2025-02-28T21:32:51Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:00:05.58597Z"}],"nvd":[{"id":"CVE-2020-0903","description":"A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.","status":"published","published":"2020-03-12T16:15:21.19Z","modified":"2026-06-17T02:46:56.66Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"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":"2026-11-02T14:05:55.32877Z"}]}}