Vulnerability

CVE-2026-47634

High· 7.3CVSS7.3EPSS0%

.rules3/5

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.

Threat signal

75/100

High

Severity

high

CVSS

7.3

EPSS

Active

CVSS

v3.1via NVDOpen in FIRST calculator →

7.3/ 10HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredLowStandard user privileges sufficient.
User InteractionRequiredRequires user action (click, file open, etc).
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactNoneNo availability impact.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

0.06%

probability of exploitation in next 30 days

p20

higher than 20% of all CVEs

3-day trend↓ 0pp

Low exploitation likelihood — defer if no other signals fire.

Vendor VEX

No VEX statements published for CVE-2026-47634. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCTrack

Total impact on non-trivial mission systems

exploitation: none
automatable: no
impact: total
mission: support

Lifecycle

2026-06-09Vendor advisory · microsoftCVE-2026-47634 — Microsoft SharePoint Server Spoofing Vulnerability
2026-06-09Published
2026-06-10Last modified1 source

Entity graph

2 nodes · 1 edges · click to pivot

CVEActorVendor advisoryIOCNews

Vendor advisories

microsoftCVE-2026-47634Microsoft SharePoint Server Spoofing Vulnerability

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47634

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.