XSS in Smoothwall Express
CVE-2019-25385
Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by manipulating the MACHINE and MACHINECOMMENT parameters. Attackers can send POST requests to the outgoing.cgi endpoint with script payloads to execute arbitrary JavaScript in users' browsers and steal session data.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (13.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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-2019-25385?
- CVE-2019-25385 is a medium-severity vulnerability in Smoothwall Express, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-16.
- How severe is CVE-2019-25385?
- Medium severity. CVSS v3 base score is 6.1 out of 10.