CVE-2026-70355

8.7 highEPSS 0.8%

High (8.7) in microsoft sharepoint server. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.7 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-08-11
Modified: 2026-08-13
Record from: the NVD, synced 2026-10-19

Affected

microsoft:sharepoint_server

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70355

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