CVE-2022-50787

moderate-risk

Published 2025-12-30

SOUND4 IMPACT/FIRST/PULSE/Eco versions 2.x contains an unauthenticated stored cross-site scripting vulnerability in the username parameter that allows attackers to inject malicious scripts. Attackers can exploit the unvalidated username input to execute arbitrary HTML and JavaScript code in victim browser sessions without authentication.

Do I need to act?

0.24% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.2/10 High

NETWORK / LOW complexity

Affected Products (12)

Impact Firmware

Pulse Firmware

First Firmware

Impact Eco Firmware

Pulse Eco Firmware

Big Voice4 Firmware

Big Voice2 Firmware

Wm2 Firmware

Stream Extension

Affected Vendors

Sound4

References (5)

Third Party Advisory https://exchange.xforce.ibmcloud.com/vulnerabilities/247920

Exploit https://packetstormsecurity.com/files/170258/SOUND4-IMPACT-FIRST-PULSE-Eco-2.x-P...

Product https://www.sound4.com/

Third Party Advisory https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-unauthenticated...

Exploit https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5731.php

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 1/34 · Minimal

Exposure 17/34 · Moderate