SpinetiX Fusion Digital Signage 3.4.8 Username Enumeration via Login Script

Advisories

severity: medium
date: December 10, 2025
Affecting: Fusion Digital Signage <= 3.4.8 (1.0.36274)
CVE: CVE-2020-36888
CWE: CWE-203 Observable Discrepancy
CVSS: 6.9
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References: ExploitDB-48847
SpinetiX Homepage
Zero Science Lab Disclosure (ZSL-2020-5591)
Credit: LiquidWorm as Gjoko Krstic of Zero Science Lab
Description: SpinetiX Fusion Digital Signage 3.4.8 contains a username enumeration vulnerability in its login script that allows attackers to identify valid user accounts. Attackers can send crafted login requests with different usernames to distinguish between existing and non-existing accounts by analyzing the server's error responses.