CVE-2023-53889
Perch CMS 3.2 Remote Code Execution via Unrestricted File Upload
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.
INFO
Published Date :
Dec. 15, 2025, 9:15 p.m.
Last Modified :
Dec. 18, 2025, 9:41 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Perch CMS to the latest version.
- Remove any uploaded .phar files from the server.
- Review uploaded files for malicious content.
- Restrict administrator access to file uploads.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-53889.
| URL | Resource |
|---|---|
| https://grabaperch.com/ | Product |
| https://www.exploit-db.com/exploits/51620 | Exploit |
| https://www.vulncheck.com/advisories/perch-cms-remote-code-execution-via-unrestricted-file-upload | Third Party Advisory |
| https://www.exploit-db.com/exploits/51620 | Exploit |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53889 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-53889
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-53889 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-53889 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 18, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:edgeofmyseat:perch:3.2:*:*:*:*:*:*:* Added Reference Type VulnCheck: https://grabaperch.com/ Types: Product Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/51620 Types: Exploit Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/perch-cms-remote-code-execution-via-unrestricted-file-upload Types: Third Party Advisory Added Reference Type CISA-ADP: https://www.exploit-db.com/exploits/51620 Types: Exploit -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Dec. 15, 2025
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/51620 -
New CVE Received by [email protected]
Dec. 15, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-434 Added Reference https://grabaperch.com/ Added Reference https://www.exploit-db.com/exploits/51620 Added Reference https://www.vulncheck.com/advisories/perch-cms-remote-code-execution-via-unrestricted-file-upload