// For flags

CVE-2023-28288

Microsoft SharePoint Server Spoofing Vulnerability

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Microsoft SharePoint Server Spoofing Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability.
The specific flaw exists within the WSSXmlUrlResolver class. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to disclose information in the context of IUSR.

Microsoft SharePoint Enterprise Server 2016 suffers from a spoofing vulnerability.

*Credits: Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-03-13 CVE Reserved
  • 2023-04-11 CVE Published
  • 2023-06-26 First Exploit
  • 2024-06-20 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Sharepoint Foundation
Search vendor "Microsoft" for product "Sharepoint Foundation"
2013
Search vendor "Microsoft" for product "Sharepoint Foundation" and version "2013"
sp1
Affected
Microsoft
Search vendor "Microsoft"
Sharepoint Server
Search vendor "Microsoft" for product "Sharepoint Server"
-subscription
Affected
Microsoft
Search vendor "Microsoft"
Sharepoint Server
Search vendor "Microsoft" for product "Sharepoint Server"
2013
Search vendor "Microsoft" for product "Sharepoint Server" and version "2013"
sp1, enterprise
Affected
Microsoft
Search vendor "Microsoft"
Sharepoint Server
Search vendor "Microsoft" for product "Sharepoint Server"
2016
Search vendor "Microsoft" for product "Sharepoint Server" and version "2016"
enterprise
Affected
Microsoft
Search vendor "Microsoft"
Sharepoint Server
Search vendor "Microsoft" for product "Sharepoint Server"
2019
Search vendor "Microsoft" for product "Sharepoint Server" and version "2019"
-
Affected