CVE-2026-70266
Analyzed Analyzed - Analysis Complete

Improper SQL Command Neutralization in Microsoft Office SharePoint

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description
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.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-14
Generated
2026-10-19
AI Q&A
2026-10-14
EPSS Evaluated
2026-10-18
NVD
CVE-2026-70266
EUVD
EUVD-2026-99714

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft sharepoint_server to 16.0.20326.20190 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This is a SQL injection vulnerability in Microsoft Office SharePoint. It allows an authorized attacker to execute malicious SQL commands by improperly neutralizing special elements in input. This can lead to unauthorized privilege escalation within the SharePoint environment.

Impact Analysis

An attacker could exploit this to gain elevated privileges, potentially accessing sensitive data, modifying system configurations, or taking control of SharePoint resources. This could lead to data breaches, unauthorized access, or disruption of services.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint Server to patch the SQL injection vulnerability. Monitor Microsoft's security advisories for patches and follow their recommended mitigation steps.

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