CVE-2026-70332: CWE-918: Server-Side Request Forgery (SSRF) in Microsoft Microsoft SharePoint Online
CVE-2026-70332 is a critical Server-Side Request Forgery (SSRF) vulnerability in Microsoft SharePoint Online that allows an unauthorized attacker to perform network spoofing. The vulnerability has a high CVSS score of 9.6, indicating severe impact on confidentiality, integrity, and availability. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-918, involves Server-Side Request Forgery (SSRF) in Microsoft SharePoint Online. It enables an attacker without privileges to cause the server to make unauthorized requests, potentially leading to spoofing attacks over the network. The CVSS 3.1 vector indicates the attack can be performed remotely without privileges but requires user interaction, and it affects confidentiality, integrity, and availability with a scope change. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could allow an attacker to spoof network requests from the SharePoint Online server, potentially leading to unauthorized access to internal resources, data disclosure, or disruption of service. The vulnerability impacts confidentiality, integrity, and availability at a critical level as reflected by the CVSS score of 9.6.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70332 to remediate this vulnerability.
CVE-2026-70332: CWE-918: Server-Side Request Forgery (SSRF) in Microsoft Microsoft SharePoint Online
Description
CVE-2026-70332 is a critical Server-Side Request Forgery (SSRF) vulnerability in Microsoft SharePoint Online that allows an unauthorized attacker to perform network spoofing. The vulnerability has a high CVSS score of 9.6, indicating severe impact on confidentiality, integrity, and availability. An official fix is available from Microsoft.
CVSS v3.1
Score 9.6critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-918, involves Server-Side Request Forgery (SSRF) in Microsoft SharePoint Online. It enables an attacker without privileges to cause the server to make unauthorized requests, potentially leading to spoofing attacks over the network. The CVSS 3.1 vector indicates the attack can be performed remotely without privileges but requires user interaction, and it affects confidentiality, integrity, and availability with a scope change. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could allow an attacker to spoof network requests from the SharePoint Online server, potentially leading to unauthorized access to internal resources, data disclosure, or disruption of service. The vulnerability impacts confidentiality, integrity, and availability at a critical level as reflected by the CVSS score of 9.6.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70332 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-04T00:04:56.036Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70332","vendor":"Microsoft"}]
Threat ID: 6a752657bf8831d539809a6e
Added to database: 08/07/2026, 00:27:03 UTC
Last enriched: 08/07/2026, 00:41:07 UTC
Last updated: 08/07/2026, 01:00:59 UTC
Views: 4
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