{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-0000e5248b77","releaseDate":"2026-10-13T07:00:00-07:00","cveNumber":"CVE-2026-102859","cveTitle":"Microsoft Office SharePoint Spoofing Vulnerability","releaseNumber":"2026-Oct","vulnType":"Security Vulnerability","latestRevisionDate":"2026-10-13T07:00:00-07:00","description":"<p>Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.</p>\n","cweList":["CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"cweDetailsListForSearch":["cwe: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","cweUrl: https://cwe.mitre.org/data/definitions/79.html"],"unformattedDescription":"<p>Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.</p>","mitreText":"CVE-2026-102859","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102859","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":100000008,"impact":"Spoofing","langCode":"en-US","baseScore":"4.6","temporalScore":"4.0","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","https://cwe.mitre.org/data/definitions/79.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},{"title":"Microsoft Office SharePoint Spoofing Vulnerability","articleType":"100000000","description":"<p>Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-102859","version":1,"revisionDate":"2026-10-13T07:00:00-07:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"9045f3c9-55bc-f111-aaad-000d3a37724b"}]}