CVE-2023-53921

CRITICAL

SitemagicCMS 4.4.3 - PHP File Upload Command Execution

Title source: manual
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-53921. PoCs published by Mirabbas Ağalarov.

AI-analyzed exploit summary This exploit demonstrates a file upload vulnerability in SitemagicCMS 4.4.3, allowing remote code execution by uploading a malicious .phar file containing PHP code. The PoC includes a multipart/form-data request to bypass restrictions and execute arbitrary commands.

Description

SitemagicCMS 4.4.3 contains a remote code execution vulnerability that allows attackers to upload malicious PHP files to the files/images directory. Attackers can upload a .phar file with system command execution payload to compromise the web application and execute arbitrary system commands.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Mirabbas Ağalarov · textwebappsphp
https://www.exploit-db.com/exploits/51464

This exploit demonstrates a file upload vulnerability in SitemagicCMS 4.4.3, allowing remote code execution by uploading a malicious .phar file containing PHP code. The PoC includes a multipart/form-data request to bypass restrictions and execute arbitrary commands.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: SitemagicCMS 4.4.3
Auth required
Prerequisites: Access to the SitemagicCMS admin panel · Valid session cookie
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0081
EPSS Percentile 51.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-434
Status published
Products (2)
sitemagic/sitemagic_cms 4.4.3
Sitemagic/SitemagicCMS 4.4.3
Published Dec 17, 2025
Tracked Since Feb 18, 2026