CVE-2026-62826

mediumpriority · track · 22EPSS 0.006 · 48 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.58% (48th) EPSS

CVSS 5.4 · medium

Is it mine?

21 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft SharePoint Enterprise Server 2016msrc_csaf
16.0.5561.1001:Security Update:https://support.microsoft.com/help/5002891
https://support.microsoft.com/help/5002891
FixedMicrosoft SharePoint Server 2019msrc_csaf
16.0.10417.20175:Security Update:https://support.microsoft.com/help/5002883
https://support.microsoft.com/help/5002883
FixedMicrosoft SharePoint Server Subscription Editionmsrc_csaf
16.0.19725.20434:Security Update:https://support.microsoft.com/help/5002882
https://support.microsoft.com/help/5002882

cvss

Technical severity, 0–10. One row per scoring source.

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7

v3.14.6mediumAV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:Csecondary · ENISA EU

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Nsecondary · secure@microsoft.com USexploitability 2.1 · impact 2.5

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79USCWE-79US

affected products (21)

Products and version ranges known to be affected.

Microsoft SharePoint Server 2016 Enterprise <16.0.5561.1001all versionscert_bundDE
Microsoft SharePoint Server 2019 <16.0.10417.20175all versionscert_bundDE
Microsoft SharePoint Subscription Edition <16.0.19725.20434all versionscert_bundDE
Microsoft SharePoint≤ Subscription Edition <16.0.19725.20434cert_bundDE
Microsoft SharePoint Server 2016≤ Enterprise <16.0.5561.1001cert_bundDE
Microsoft SharePoint Server 2019< 16.0.10417.20175cert_bundDE
Microsoft Microsoft SharePoint Enterprise Server 201616.0.0 → 16.0.5561.1001enisa_euvdEU
Microsoft Microsoft SharePoint Server 201916.0.0 → 16.0.10417.20175enisa_euvdEU
Microsoft Microsoft SharePoint Server Subscription Edition16.0.0 → 16.0.19725.20434enisa_euvdEU
Microsoft Corp Microsoft SharePoint Enterprise Server 2016≤ 16.0.5561.1001fstec_bduRU
Microsoft Corp Microsoft SharePoint Server 2019≤ 16.0.10417.20175fstec_bduRU
Microsoft Corp Microsoft SharePoint Server Subscription Edition≤ 16.0.19725.20434fstec_bduRU
Microsoft Microsoft SharePoint Enterprise Server 2016all versionsfixedmsrc_csafUS
Microsoft Microsoft SharePoint Enterprise Server 2016< 16.0.5561.1001msrc_csafUS
Microsoft Microsoft SharePoint Server 2019all versionsfixedmsrc_csafUS
Microsoft Microsoft SharePoint Server 2019< 16.0.10417.20175msrc_csafUS
Microsoft Microsoft SharePoint Server Subscription Editionall versionsfixedmsrc_csafUS
Microsoft Microsoft SharePoint Server Subscription Edition< 16.0.19725.20434msrc_csafUS
microsoft sharepoint server< 16.0.19725.20434nvdUScpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:*:*:*:*
microsoft sharepoint server= 2016nvdUScpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:*:*:*:*

showing 20 of 21

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2397Microsoft SharePoint und SharePoint Server: Schwachstelle ermöglicht Cross-Site ScriptingDeutsch2026-07-16csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft SharePoint und Microsoft SharePoint Server ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
msrc_CVE-2026-62826Microsoft SharePoint Server Spoofing Vulnerability2026-07-16csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf nvd NVD CVE.org MITRE

published 2026-07-16modified 2026-07-22

references (3)

External citations — patches, advisories, analysis.

scry

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