{"id":"CVE-2020-0647","aliases":["EUVD-2020-2141","GHSA-r3cv-6vrm-m2pf"],"status":"published","title":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin...","description":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications correctly, aka 'Microsoft Office Online Spoofing Vulnerability'.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00983,"percentile":0.62558,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-346"],"published":"2020-01-14T23:11:39Z","modified":"2026-06-17T02:46:15Z","products":[{"vendor":"microsoft","product":"office online server"},{"vendor":"microsoft","product":"office_online_server"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0647","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0647"},{"url":"https://github.com/advisories/GHSA-r3cv-6vrm-m2pf"}],"sources":{"cve":[{"id":"CVE-2020-0647","description":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications correctly, aka 'Microsoft Office Online Spoofing Vulnerability'.","status":"published","published":"2020-01-14T23:11:39Z","modified":"2024-08-04T06:11:04.782Z","updated_at":"2026-11-02T14:35:59.763887Z"}],"euvd":[{"id":"EUVD-2020-2141","description":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications correctly, aka 'Microsoft Office Online Spoofing Vulnerability'.","status":"published","published":"2020-01-14T23:11:39Z","modified":"2024-08-04T06:11:04Z","updated_at":"2026-11-03T03:08:19.102243Z"}],"ghsa":[{"id":"GHSA-r3cv-6vrm-m2pf","title":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin...","description":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications correctly, aka 'Microsoft Office Online Spoofing Vulnerability'.","status":"published","published":"2022-05-24T17:06:21Z","modified":"2023-01-29T05:01:16Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:44:46.468507Z"}],"nvd":[{"id":"CVE-2020-0647","description":"A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications correctly, aka 'Microsoft Office Online Spoofing Vulnerability'.","status":"published","published":"2020-01-14T23:15:33.207Z","modified":"2026-06-17T02:46:15.6Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:05:52.385274Z"}]}}