Remote Code Execution Vulnerability in Perch CMS by Grabaperch
CVE-2023-53889

7.2HIGH

Key Information:

Vendor

Perch

Status
Perch
Vendor
CVE Published:
15 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-53889?

Perch CMS version 3.2 is susceptible to a remote code execution flaw due to an unrestricted file upload vulnerability within the assets management interface. Authenticated attackers with administrative access can exploit this vulnerability by uploading malicious PHP files, specifically .phar files, which can execute arbitrary system commands on the affected server. This presents a significant risk of unauthorized server control, making it essential for users of Perch CMS to address this security issue promptly.

Affected Version(s)

Perch 3.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-53889 - Proof of Concept

References

https://www.exploit-db.com/exploits/51620
exploit
https://grabaperch.com/
product
https://www.vulncheck.com/advisories/perch-cms-remote-cod...
third-party-advisory

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mirabbas Ağalarov
JSON
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CVE-2023-53889 : Remote Code Execution Vulnerability in Perch CMS by Grabaperch