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CVE-2026-45483

Microsoft Office Project Server Spoofing Vulnerability

Published: Jun 9, 2026Updated: Jun 9, 2026 Sources: CVE List NVD
NVD MITRE
4.6CVSS
MEDIUM

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

EPSS Score
0.1%
Top 81.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-79

Affected Products

Microsoft SharePoint Enterprise Server 2016
Microsoft
Operating Systems / windows
Microsoft SharePoint Server 2019
Microsoft
Operating Systems / windows
Microsoft SharePoint Server Subscription Edition
Microsoft
Operating Systems / windows
microsoftcommercialUSOperating Systems

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45483
msrc.microsoft.com

Timeline

Published
Jun 9, 2026
Last Updated
Jun 9, 2026
News mentions
3

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