Remote Code Execution Vulnerability in UliCMS by UliCMS
CVE-2023-53924

8.7HIGH

Key Information:

Vendor

Ulicms

Status
Ulicms
Vendor
CVE Published:
17 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-53924?

UliCMS 2023.1-sniffing-vicuna is susceptible to a remote code execution vulnerability that allows authenticated users to upload malicious PHP files with a .phar extension during avatar uploads. This flaw enables attackers to execute arbitrary commands on the server by accessing the location of the uploaded file. By exploiting this vulnerability, a malicious actor can craft a seemingly harmless avatar image, leading to significant security risks. Organizations using affected versions of UliCMS should prioritize patching to protect their systems from potential exploitation.

Affected Version(s)

Ulicms 2023.1

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-2023-53924 - Proof of Concept

References

https://www.exploit-db.com/exploits/51434
exploit
https://web.archive.org/web/20230314183734/https://en.uli...
product
https://www.vulncheck.com/advisories/ulicms-sniffing-vicu...
third-party-advisory

CVSS V4

Score:
8.7
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-2023-53924 : Remote Code Execution Vulnerability in UliCMS by UliCMS