CVE-2026-70251

Analyzed Analyzed - Analysis Complete

Microsoft Office SharePoint Server-Side Request Forgery

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

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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-2026-70251

EUVD

EUVD-2026-99708

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	to 16.0.20326.20190 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

This is a server-side request forgery (SSRF) vulnerability in Microsoft Office SharePoint. An authorized attacker can exploit it to send crafted requests from the server, potentially gaining elevated privileges over the network.

Impact Analysis

An attacker could use this to gain higher access levels in SharePoint, potentially accessing sensitive data, modifying content, or performing unauthorized actions. This requires the attacker to already have some authorized access.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating confidentiality and integrity requirements in GDPR and HIPAA. Organizations using SharePoint may face compliance violations if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint Server to address the SSRF vulnerability. Monitor Microsoft's security advisories for patches and implement network-level controls to restrict unauthorized requests.

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