# CVE-2026-70355

## Summary

- **CVE ID:** CVE-2026-70355
- **Severity:** HIGH
- **CVSS Score:** 7.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N)
- **CWE:** CWE-79
- **Published:** Aug 11, 2026
- **Last Modified:** Sep 9, 2026

## Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

## Affected Products

- Microsoft — Microsoft SharePoint Server 2019 (16.0.0)
- Microsoft — Microsoft SharePoint Server Subscription Edition (16.0.0)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70355)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.46%
- **EPSS Percentile:** 38.7

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._