---
id: "CVE-2026-109495"
page: "https://infrastack.ai/live/CVE-2026-109495"
kind: "vulnerability"
aliases: ["CVE-2026-109495"]
title: "Microsoft SharePoint: missing authorization lets a logged-in user gain privileges"
severity: "medium"
cvss: 6.6
epss: null
exploited: false
status: "open"
category: "vendor"
products: [{"name": "Microsoft Office SharePoint", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["microsoft-office", "on-premises", "sharepoint", "vendor"]
not_affected_if: ["sharepoint-online"]
published_at: "2026-11-10T19:18:18+00:00"
first_seen_at: "2026-11-10T19:24:25+00:00"
updated_at: "2026-11-10T19:56:04+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109495", "first_seen_at": "2026-11-10T19:24:25+00:00"}]
exploit_sources: []
---

# Microsoft SharePoint: missing authorization lets a logged-in user gain privileges

Link for people: https://infrastack.ai/live/CVE-2026-109495 (this .md is for agents)

Microsoft Office SharePoint lacks an authorization check, so an attacker who already has a valid account can raise their privileges over the network. The NVD entry rates it medium (CVSS 6.6) and reports no exploitation in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Microsoft Office SharePoint affected range not listed fixed no fixed version listed

## Timeline

- 2026-11-10T19:24:25+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-109495

## From the sources

Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_