CVE-2023-28288

Name: CVE-2023-28288
Creator: NVD / NIST
Published: 2023-04-11T21:15:27.017+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 6.23%

Last modified Jun 17, 2026

CVE-2023-28288 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Microsoft SharePoint Server Spoofing Vulnerability. EPSS estimates a 6.23% chance of exploitation in the next 30 days.

Description

Microsoft SharePoint Server Spoofing Vulnerability

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

6.23%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions	Update
Microsoft	Sharepoint Foundation	2013	Sp1
Microsoft	Sharepoint Server	All versions	—
Microsoft	Sharepoint Server	2013	Sp1
Microsoft	Sharepoint Server	2016	—
Microsoft	Sharepoint Server	2019	—

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28288Patch, Vendor Advisory
http://packetstormsecurity.com/files/173126/Microsoft-SharePoint-Enterprise-Server-2016-Spoofing.htmlThird Party Advisory, VDB Entry
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28288Patch, Vendor Advisory

Timeline

Published: Apr 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28288?

Microsoft SharePoint Server Spoofing Vulnerability

How severe is CVE-2023-28288?

CVE-2023-28288 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 6.23% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28288?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28288?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST