CVE-2023-36894: Microsoft SharePoint Server Information Disclosure Vulnerability

Overview

Severity
Medium (CVSS 6.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Category
Information Disclosure
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2023-Aug
Released
2023-08-08
Last Updated
2023-08-11
EPSS Score
1.13% (percentile: 78.3%)

FAQ

There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software? Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order. According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? The attacker must be authenticated to the target site, with the permission to use Manage Lists within SharePoint. What type of information could be disclosed by this vulnerability? An attacker that successfully exploited this vulnerability could leak private property values.

Affected Products (3)

Microsoft Office

  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Server Subscription Edition

Security Updates (5)

Acknowledgments

Nguyn Tin Giang of STAR Labs

Revision History

  • 2023-08-08: Information published.
  • 2023-08-11: Updated acknowledgment.