CVE-2026-70266: Microsoft Office SharePoint Elevation of Privilege Vulnerability

Published Oct 13, 2026
·
Updated

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Other sources

Microsoft Office SharePoint Elevation of Privilege Vulnerability

— Microsoft

Affected Software

1 affected componentFixes available
Microsoft SharePoint Server Subscription Edition<16.0.20326.20190
16.0.20326.20190

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.20326.20190Patch KB5002927

Event History

Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·07:00 PM
Data Sourced
via MITRE·07:00 PM
DescriptionSeverity

Frequently Asked Questions

1

Who can exploit this vulnerability?

An attacker must be authorized to access the affected SharePoint Server Subscription Edition instance. Exploitation can be performed over the network and does not require user interaction.

2

What access does a successful attacker gain?

Successful exploitation allows elevation of privileges. The supplied severity vector indicates potential high impact to confidentiality, integrity, and availability.

3

Is this exploitable without credentials?

No. The vulnerability description specifies that the attacker must be authorized, and the vector lists privileges required as low.

Contact

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