CVE-2023-53889 HIGH

CVE-2023-53889: Perch CMS 3.2 Remote Code Execution via Unrestricted File Upload

Vendor Perch
Product Perch
Weakness CWE-434 · Unrestricted file upload
Published December 15, 2025
Last update May 12, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Perch CMS 3.2 contains a remote code execution vulnerability that allows authenticated administrators to upload arbitrary PHP files through the assets management interface. Attackers can upload a malicious .phar file with embedded system command execution capabilities to execute arbitrary commands on the server.

Key dates

02Disclosure timeline

December 15, 2025 CVE published
May 12, 2026 Record updated