SB2025070997 - Multiple vulnerabilities in Microsoft SharePoint

Description

This security bulletin contains information about 3 vulnerabilities.

1) Code Injection (CVE-ID: CVE-2025-49704)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in Microsoft SharePoint. A remote user can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Improper Authorization (CVE-ID: CVE-2025-49701)

CWE-ID: CWE-285 - Improper Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to improper authorization in Microsoft SharePoint. A remote user can bypass authorization and execute arbitrary code on the target system.

3) Improper Authentication (CVE-ID: CVE-2025-49706)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:A/U:Green

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests in Microsoft SharePoint Server. A remote attacker can perform spoofing attack and gain unauthorized access to sensitive information.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49704
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49701
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706