CVE-2025-49704

Published Jul 8, 2025

Last updated a year ago

Microsoft Office SharePoint

ToolShell

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-49704 is a code injection vulnerability in Microsoft Office SharePoint. An authorized attacker could exploit this vulnerability to execute code over a network. To exploit this vulnerability, the attacker needs to be authenticated with at least Site Owner privileges. Successful exploitation of CVE-2025-49704 allows an attacker to write arbitrary code into a vulnerable SharePoint server to gain remote code execution. The attack complexity is low and can be exploited remotely from the internet, potentially leading to complete compromise of affected SharePoint servers.

Description: Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Source: secure@microsoft.com
NVD status: Modified
Products: sharepoint_server

Risk scores

CVSS 3.1

Type: Secondary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Known exploits

Data from CISA

Vulnerability name: Microsoft SharePoint Code Injection Vulnerability
Exploit added on: Jul 22, 2025
Exploit action due: Jul 23, 2025
Required action: Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

Weaknesses

secure@microsoft.com: CWE-94

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*",
            "matchCriteriaId": "F815EF1D-7B60-47BE-9AC2-2548F99F10E4",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*",
            "matchCriteriaId": "6122D014-5BF1-4AF4-8B4D-80205ED7785E",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.