CVE-2026-70306

critical · 9.3

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

9.3

CVSS

1.0%

EPSS (exploit prob.)

62nd

EPSS percentile

2026-08-11

Published

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

Weaknesses

CWE-79

Affected products

Vendor	Product	Affected versions
microsoft	sharepoint_server	< 16.0.19725.20434
microsoft	sharepoint_server	2016
microsoft	sharepoint_server	2019

Check a specific version with /api/v1/cve/match.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70306

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-70306