{"id":"CVE-2026-123391","aliases":["EUVD-2026-122313","GHSA-q5ph-8xwx-3hvh"],"status":"published","title":"Microsoft Office SharePoint Elevation of Privilege Vulnerability","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-13","score":0.00795,"percentile":0.56977,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-11-10T18:22:24Z","modified":"2026-11-10T21:33:57Z","products":[{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-123391","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123391"},{"url":"https://github.com/advisories/GHSA-q5ph-8xwx-3hvh"}],"sources":{"cve":[{"id":"CVE-2026-123391","title":"Microsoft Office SharePoint Elevation of Privilege Vulnerability","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T18:22:24.125Z","modified":"2026-11-12T21:49:36.381Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-10T19:39:58.973959Z"}],"euvd":[{"id":"EUVD-2026-122313","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T18:22:24Z","modified":"2026-11-12T21:49:36Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:25:03.672914Z"}],"ghsa":[{"id":"GHSA-q5ph-8xwx-3hvh","title":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate...","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T21:33:50Z","modified":"2026-11-10T21:33:57Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-10T21:57:55.411542Z"}],"nvd":[{"id":"CVE-2026-123391","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T19:20:43.01Z","modified":"2026-11-11T02:17:13.047Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-11T07:23:51.286099Z"}]}}