CVE-2019-25394 MEDIUM

CVE-2019-25394: Smoothwall Express 3.1 'modem.cgi' Cross-Site Scripting

Vendor Smoothwall
Product Smoothwall Express
Weakness CWE-79 · XSS
Published February 16, 2026
Last update March 5, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple stored cross-site scripting vulnerabilities in the modem.cgi script that allow attackers to inject malicious scripts through POST parameters. Attackers can submit crafted payloads in parameters like INIT, HANGUP, SPEAKER_ON, SPEAKER_OFF, TONE_DIAL, and PULSE_DIAL to execute arbitrary JavaScript in users' browsers when the stored data is retrieved.

Key dates

02Disclosure timeline

February 16, 2026 CVE published
March 5, 2026 Record updated

Related vulnerabilities

04Related CVE