CVE-2023-53924

HIGH 8.8

UliCMS 2023.1-sniffing-vicuna Remote Code Execution via Avatar Upload

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

UliCMS 2023.1-sniffing-vicuna contains a remote code execution vulnerability that allows authenticated attackers to upload PHP files with .phar extension during profile avatar upload. Attackers can trigger code execution by visiting the uploaded file's location, enabling system command execution through maliciously crafted avatar uploads.

CWE	CWE-434
Vendor	ulicms
Product	ulicms
Published	Dec 17, 2025
Last Updated	Apr 7, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Ulicms / Ulicms

2023.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/51434 web.archive.org: https://web.archive.org/web/20230314183734/https://en.ulicms.de/ vulncheck.com: https://www.vulncheck.com/advisories/ulicms-sniffing-vicuna-remote-code-execution-via-avatar-upload

Credits

Mirabbas Ağalarov