Vulnerability · Published Dec 15, 2025 · Assigned by VulnCheck

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

High 8.6

In plain English

A high-severity unrestricted file upload in Perch from Perch. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.9%top 39.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Perch	Perch	3.2

Weakness: CWE-434 · 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

References

ExploitDB-51620 exploit
Perch Product Webpage product
VulnCheck Advisory: Perch CMS 3.2 Remote Code Execution via Unrestricted File Upload third-party-advisory