Vulnerability · Published Dec 22, 2025 · Assigned by VulnCheck
CVE-2023-53962SOUND4 IMPACT/FIRST/PULSE/Eco v2.x Unauthenticated Directory Traversal File Write
High 7.5
In plain English
A high-severity path traversal in WM2 from Kantar Media. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 30.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SOUND4 Ltd. | Impact/Pulse/First | Version 2: 1.1/2.15 |
| SOUND4 Ltd. | Impact/Pulse Eco | 1.16 |
| SOUND4 Ltd. | BigVoice4 | 1.2 |
| SOUND4 Ltd. | BigVoice2 | 1.30 |
| SOUND4 Ltd. | Stream | 1.1/2.4.29 |
| Kantar Media | WM2 | 1.11 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
- ExploitDB-51172 exploit
- SOUND4 Official Product Homepage product
- Zero Science Lab Disclosure (ZSL-2022-5730) third-party-advisory
- VulnCheck Advisory: SOUND4 IMPACT/FIRST/PULSE/Eco v2.x Unauthenticated Directory Traversal File Write third-party-advisory