CVE-2026-80095 | BDVDB-2026-403330 Detail

MicrosoftMicrosoft SharePoint Server Subscription Edition

Description#

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References#

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80095

Exploit#

No public exploit known

History#

Version 12026-11-10Record published in the CVE List.

Published

Published: 2026-11-10
Last modified: 2026-11-10

Vendor information

Vendor: Microsoft
Product: Microsoft SharePoint Server Subscription Edition

All Microsoft vulnerabilities

Score

9.0 Critical

EPSS

Not available

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Scripting

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 16.0.0 and < 16.0.20326.20278
Fixed
16.0.20326.20278

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.0 Critical

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	Required
Scope	Changed
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).