CVE-2023-53955

SOUND4 IMPACT/FIRST/PULSE/Eco v2.x Authorization Bypass via Insecure Object References

SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an insecure direct object reference vulnerability that allows attackers to bypass authorization and access hidden system resources. Attackers can exploit the vulnerability by manipulating user-supplied input to execute privileged functionalities without proper authentication.

Affected

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

CVSS v4.0 VULNCHECK

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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 VULNCHECK

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

EPSS

0.85% chance of exploitation in the next 30 days, 58th percentile

Published

2025-12-22

Updated

2026-10-01

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51169

Security advisories

• https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-authorization-bypass-via…
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5723.php
• https://web.archive.org/web/20221207074555/https://www.sound4.com

References

• CVE Record
• NVD entry