Dashboard / CVE-2026-70306

CVE-2026-70306

CRITICAL
INFO Priority: 0.09 BB Relevance: 69/100
Published: 2026-08-11 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: High
I: High
A: None

Description

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

Weakness Classification (1)

Affected Software (9)

VendorProductVersion
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 < 16.0.5565.1001
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 < 16.0.5565.1001
Microsoft Microsoft SharePoint Server 2019 16.0.0 < 16.0.10417.20198
Microsoft Microsoft SharePoint Server 2019 16.0.0 < 16.0.10417.20198
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 < 16.0.19725.20522
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 < 16.0.19725.20522
microsoft sharepoint_server < 16.0.19725.20434
microsoft sharepoint_server 2016
microsoft sharepoint_server 2019

References & Advisories (1)

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

9.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

1.01%
Raw Score 0.010090
Percentile 63.0%
Date 2026-10-28

Intelligence Sources

mitre ref →

External Links