SOUND4 IMPACT/FIRST/PULSE/Eco v2.x Unauthenticated Directory Traversal File Write

Advisories

severity: high
date: December 22, 2025
Affecting: Impact/Pulse/First Version 2: 1.1/2.15, Version 2: 1.1/2.15
Impact/Pulse Eco 1.16
BigVoice4 1.2
BigVoice2 1.30
Stream 1.1/2.4.29
WM2 1.11
CVE: CVE-2023-53962
CWE: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS: 8.8
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
References: ExploitDB-51172
SOUND4 Official Product Homepage
Zero Science Lab Disclosure (ZSL-2022-5730)
Credit: LiquidWorm as Gjoko Krstic of Zero Science Lab
Description: SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated directory traversal vulnerability that allows remote attackers to write arbitrary files through the 'upgfile' parameter in upload.cgi. Attackers can exploit the vulnerability by sending crafted multipart form-data POST requests with directory traversal sequences to write files to unintended system locations.