Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Published: 2026-10-13
Score: 4.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Spoofing via Cross‑Site Scripting
Action: Monitor
AI Analysis

Impact

An attacker with authorized access can exploit an improper neutralization of input during web page generation in Microsoft SharePoint, enabling cross‑site scripting that allows the attacker to spoof content over the network.

Affected Systems

Microsoft SharePoint Server Subscription Edition. No specific version information is provided, so all deployed instances are potentially affected until a security update is applied.

Risk and Exploitability

The CVSS score of 4.6 indicates moderate severity. The EPSS score is not available and the vulnerability is not listed in CISA’s KEV catalog. Attack requires authorized user privileges, suggesting that the risk primarily exists in environments where attacker access is already granted. Exploitation could lead to the display of forged content, confusing users or redirecting them to malicious sites.

Generated by OpenCVE AI on October 14, 2026 at 10:19 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Microsoft Office SharePoint Server security updates from Microsoft
  • Restrict permissions so that only trusted users can add or edit page content that could be interpreted as user input
  • Deploy a web application firewall or custom input validation to detect and neutralize XSS attempts before rendering pages
  • Audit and monitor logs for unexpected script execution or page modifications to identify potential abuse

Generated by OpenCVE AI on October 14, 2026 at 10:19 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


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

Type Values Removed Values Added
Description Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Title Microsoft Office SharePoint Spoofing Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Weaknesses CWE-79
CPEs cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
Vendors & Products Microsoft
Microsoft sharepoint Server
References
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Sharepoint Server
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-31T18:06:44.776Z

Reserved: 2026-09-09T22:01:13.385Z

Link: CVE-2026-88208

cve-icon Vulnrichment

Updated: 2026-10-13T19:49:41.707Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:21:42.413

Modified: 2026-10-14T19:43:36.213

Link: CVE-2026-88208

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T16:00:10Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')