Description
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Published: 2026-10-13
Score: 8.8 High
EPSS: 1.0% Low
KEV: No
Impact: Privilege Escalation
Action: Immediate Patch
AI Analysis

Impact

The vulnerability arises from improper control of code generation in Microsoft Office SharePoint, allowing an authorized attacker to inject and execute code with elevated privileges. This code injection flaw (CWE‑94) can bypass normal security checks, enabling the attacker to gain higher‑level permissions to access confidential data, modify content, or conduct further attacks.

Affected Systems

Microsoft SharePoint Server Subscription Edition. No version ranges are listed, so all deployed instances of this product should be screened for the vulnerability until a patch is applied.

Risk and Exploitability

The CVSS score of 8.8 indicates a high severity level, while the EPSS score of less than 1% suggests that exploitation is currently unlikely. The vulnerability is not listed in the CISA KEV catalog. The attack vector is likely network‑based and requires an authenticated attacker who can interact with SharePoint to trigger code generation. Although publicly available exploits have not been disclosed, the potential for privilege escalation warrants rapid remediation.

Generated by OpenCVE AI on October 17, 2026 at 05:45 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Microsoft Office SharePoint Server Subscription Edition security update that addresses CVE‑2026‑102863.
  • Restrict code generation capabilities to administrators only, or disable the feature until the patch is applied.
  • Monitor SharePoint environments for signs of unauthorized privilege escalation or abnormal code execution.

Generated by OpenCVE AI on October 17, 2026 at 05:45 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 16 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Title Microsoft Office SharePoint Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Weaknesses CWE-94
CPEs cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
Vendors & Products Microsoft
Microsoft sharepoint Server
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Sharepoint Server
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-31T18:00:31.882Z

Reserved: 2026-09-29T17:27:07.499Z

Link: CVE-2026-102863

cve-icon Vulnrichment

Updated: 2026-10-13T21:14:12.332Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:17:50.837

Modified: 2026-10-14T19:45:34.913

Link: CVE-2026-102863

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T05:45:03Z

Weaknesses
  • CWE-94

    Improper Control of Generation of Code ('Code Injection')