{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-00000476646c","releaseDate":"2026-11-10T08:00:00-08:00","cveNumber":"CVE-2026-88176","cveTitle":"Microsoft Office SharePoint Elevation of Privilege Vulnerability","releaseNumber":"2026-Nov","vulnType":"Security Vulnerability","latestRevisionDate":"2026-11-10T08:00:00-08:00","description":"<p>Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.</p>\n","cweList":["CWE-862: Missing Authorization"],"cweDetailsListForSearch":["cwe: CWE-862: Missing Authorization","cweUrl: https://cwe.mitre.org/data/definitions/862.html"],"unformattedDescription":"<p>Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.</p>","mitreText":"CVE-2026-88176","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-88176","publiclyDisclosed":"No","exploited":"No","latestSoftwareReleaseId":2,"latestSoftwareRelease":"Exploitation Less Likely","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":"Microsoft Office SharePoint","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000002,"impact":"Elevation of Privilege","langCode":"en-US","baseScore":"8.8","temporalScore":"7.7","vectorString":"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","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-862: Missing Authorization","https://cwe.mitre.org/data/definitions/862.html"]}],"articles":[{"articleType":"FAQ","description":"<p><strong>Is the Preview Pane an attack vector for this vulnerability?</strong></p>\n<p>No, the Preview Pane is not an attack vector.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>I am running SharePoint Server 2016. Do the updates for SharePoint Enterprise Server 2016 also apply to the version I am running?</strong></p>\n<p>Yes. The same KB number applies to both SharePoint Server 2016 and SharePoint Enterprise Server 2016. Customers running either version should install the security update to be protected from this vulnerability.</p>\n","ordinal":10000},{"title":"Microsoft Office SharePoint Elevation of Privilege Vulnerability","articleType":"100000000","description":"<p>Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>What privileges could be gained by an attacker who successfully exploited this vulnerability?</strong></p>\n<p>Successful exploitation could allow an attacker to run script in the security context of the affected SharePoint user and perform actions permitted to that user.</p>\n","ordinal":10000},{"articleType":"FAQ","description":"<p><strong>How could an attacker exploit this vulnerability?</strong></p>\n<p>An authenticated attacker with permissions to add or modify content on an affected SharePoint page could store malicious script content in the page. The script could run in the security context of another user when that user views and interacts with the affected content, potentially allowing the attacker to access or modify SharePoint data available to that user.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-88176","version":1,"revisionDate":"2026-11-10T08:00:00-08:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"d82a9d10-e6b5-f111-93fe-000d3afbc7d7"},{"cveNumber":"CVE-2026-88176","version":1.1,"revisionDate":"2026-11-10T08:00:00-08:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Updated an acknowledgement. This is an informational change only.</p>\n","unformattedDescription":"Updated an acknowledgement. This is an informational change only.","notificationNeeded":false,"notificationSent":false,"sourceId":"525a67ef-f9db-f111-84e8-7ced8d6dc6d1"}]}