Unauthenticated Directory Traversal in SOUND4 IMPACT/FIRST/PULSE/Eco v2.x
CVE-2023-53962

8.8HIGH

Key Information:

Vendor

Sound4 Ltd.

Status
Impact/pulse/first
Impact/pulse Eco
Bigvoice4
Bigvoice2
Vendor
CVE Published:
22 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-53962?

The SOUND4 IMPACT, FIRST, PULSE, and Eco products versions 2.x exhibit a vulnerability that allows remote attackers to exploit unauthenticated directory traversal. By manipulating the 'upgfile' parameter within the upload.cgi file, such attacks can enable file writing to unintended directories on the system. Attackers can achieve this by sending specially crafted multipart form-data POST requests that include directory traversal sequences, potentially compromising system integrity and security.

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Affected Version(s)

BigVoice2 1.30

BigVoice4 1.2

Impact/Pulse Eco 1.16

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-53962 - Proof of Concept

References

https://www.exploit-db.com/exploits/51172
exploit
https://web.archive.org/web/20221207074555/https://www.so...
product
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-57...
third-party-advisory

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
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