CVE-2023-53889 Perch CMS 3.2 Remote Code Execution via Unrestricted File Upload
Authenticated administrators can upload malicious PHP files to execute arbitrary commands on the server, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-53889?
CVE-2023-53889 is a high-severity vulnerability in Perch, published on 15 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
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.
Weakness: CWE-434
Which versions are affected by CVE-2023-53889?
It affects 1 product.
Products include Grabaperch Perch.
How do I fix CVE-2023-53889?
No fix has been published for CVE-2023-53889 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-53889 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53889 exists.
Other vulnerabilities in Perch
Sources
Also known as GHSA-gvhr-6xq2-2p5f.