XSS in Smoothwall Express
CVE-2019-25394
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (13.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Smoothwall Express — versions 3.1
- Smoothwall Smoothwall_express — versions 3.1
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Broken Link, third-party-advisory)
Frequently asked questions
- What is CVE-2019-25394?
- CVE-2019-25394 is a high-severity vulnerability in Smoothwall Express, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-02-16.
- How severe is CVE-2019-25394?
- High severity. CVSS v3 base score is 7.2 out of 10.