Dashboard / CVE-2026-55126

CVE-2026-55126

HIGH
MEDIUM Priority: 0.05 BB Relevance: 55/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

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.

Weakness Classification (1)

Affected Software (9)

VendorProductVersion
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 < 16.0.5561.1001
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 < 16.0.5561.1001
Microsoft Microsoft SharePoint Server 2019 16.0.0 < 16.0.10417.20175
Microsoft Microsoft SharePoint Server 2019 16.0.0 < 16.0.10417.20175
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 < 16.0.19725.20434
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 < 16.0.19725.20434
microsoft sharepoint_server < 16.0.19725.20434
microsoft sharepoint_server 2016
microsoft sharepoint_server 2019

References & Advisories (1)

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

7.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.65%
Raw Score 0.006490
Percentile 51.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00649
2026-10-28
0.00649

Intelligence Sources

mitre ref →

External Links