CVE-2023-53962

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

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.

Affected

SOUND4 Ltd. · Kantar Media · Impact/Pulse/First · Impact/Pulse Eco · BigVoice4 · BigVoice2 · Stream · WM2

CVSS v4.0 VULNCHECK

8.8 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 NVD

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

EPSS

1.24% chance of exploitation in the next 30 days, 69th percentile

Published

2025-12-22

Updated

2026-10-01

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51172

Security advisories

• https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-unauthenticated-director…
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5730.php
• https://web.archive.org/web/20221207074555/https://www.sound4.com

References

• CVE Record
• NVD entry