Path traversal in Microsoft SharePoint Server

1) Path traversal

EUVDB-ID: #VU113096

Risk: Medium

CVSSv4.0: 5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-53771

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and read arbitrary files on the system, leading to a spoofing attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server: 2016 - 2019

CPE2.3

• cpe:2.3:a:microsoft:microsoft_sharepoint_server:2016:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_sharepoint_server:2019:*:*:*:*:*:*:*

External links

https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-53771

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.