TinyWebGallery v2.5 Remote Code Execution via Unrestricted File Upload

Advisories

severity: critical
date: December 17, 2025
Affecting: TinyWebGallery 2.5
CVE: CVE-2023-53922
CWE: CWE-434 Unrestricted Upload of File with Dangerous Type
CVSS: 9.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-51443
Official Product Webpage
Credit: Mirabbas Ağalarov
Description: TinyWebGallery v2.5 contains a remote code execution vulnerability in the admin upload functionality that allows unauthenticated attackers to upload malicious PHP files. Attackers can upload .phar files with embedded system commands to execute arbitrary code on the server by accessing the uploaded file's URL.