---
id: "CVE-2026-111300"
page: "https://infrastack.ai/live/CVE-2026-111300"
kind: "vulnerability"
aliases: ["CVE-2026-111300"]
title: "Microsoft SharePoint: cross-site scripting lets an authorized user spoof pages"
severity: "high"
cvss: 7.3
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: "2026-11-10T19:18:27+00:00"
first_seen_at: "2026-11-10T19:24:29+00:00"
updated_at: "2026-11-10T19:47:42+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111300", "first_seen_at": "2026-11-10T19:24:29+00:00"}]
exploit_sources: []
---

# Microsoft SharePoint: cross-site scripting lets an authorized user spoof pages

Link for people: https://infrastack.ai/live/CVE-2026-111300 (this .md is for agents)

Microsoft Office SharePoint does not properly neutralize input when generating web pages, enabling cross-site scripting. An attacker with an authorized account can perform spoofing over the network.

_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

- 2026-11-10T19:24:29+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111300

## From the sources

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.

---

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