# CVE-2026-111297: Microsoft Office SharePoint cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-111297-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-111297 · Severity: high · CVSS 8 · Published 2026-11-10

Microsoft Office SharePoint is a collaboration platform used by organizations to manage documents and business processes. An authorized user can inject malicious scripts into web pages that other users view, allowing the attacker to impersonate legitimate content, steal credentials, or redirect users to phishing sites. This vulnerability requires the attacker to already have valid access to the SharePoint environment.

Technologies: [Microsoft Office SharePoint](https://junglewise.ai/threats/technologies/office-sharepoint). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-111297 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111297 being exploited in the wild.

**How severe is CVE-2026-111297?** High severity, with a CVSS score of 8, published 10 November 2026.

**Which products and versions are affected?** Microsoft Office SharePoint.

**Is there a fix for CVE-2026-111297?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-111297 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-111297?** Check whether you run Microsoft Office SharePoint. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is a stored or reflected cross-site scripting (XSS) vulnerability in SharePoint's web page generation that fails to properly sanitize user input. An authenticated attacker can inject JavaScript code that executes in other users' browsers when they visit affected pages. The vulnerability allows spoofing attacks and potential session hijacking within the SharePoint environment.

## Affected products

- Microsoft Office SharePoint

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-111297](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-111297)

## Related threats

- [Microsoft Office SharePoint privilege escalation via missing authorization](https://junglewise.ai/threats/cve-2026-88176-missing-authorization-in-microsoft-office-sharepoint-allows-an)
- [Microsoft Office SharePoint XSS privilege escalation](https://junglewise.ai/threats/cve-2026-80095-improper-neutralization-of-input-during-web-page-generation-cross)
- [Microsoft Office SharePoint server-side request forgery](https://junglewise.ai/threats/cve-2026-124210-server-side-request-forgery-ssrf-in-microsoft-office-sharepoint)
- [Microsoft Office SharePoint privilege escalation via incorrect authorization](https://junglewise.ai/threats/cve-2026-123391-incorrect-authorization-in-microsoft-office-sharepoint-allows-an)
- [Microsoft Office SharePoint deserialization of untrusted data](https://junglewise.ai/threats/cve-2026-123390-deserialization-of-untrusted-data-in-microsoft-office-sharepoint)