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Description

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the interfaces.cgi script that allow attackers to inject malicious scripts through multiple parameters including GREEN_ADDRESS, GREEN_NETMASK, RED_DHCP_HOSTNAME, RED_ADDRESS, DNS1_OVERRIDE, DNS2_OVERRIDE, RED_MAC, RED_NETMASK, DEFAULT_GATEWAY, DNS1, and DNS2. Attackers can craft POST requests to interfaces.cgi with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated administrator sessions.

PUBLISHED Reserved 2026-02-16 | Published 2026-02-16 | Updated 2026-02-17 | Assigner VulnCheck




MEDIUM: 4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

3.1
affected

Credits

Ozer Goker finder

References

www.exploit-db.com/exploits/46333 (ExploitDB-46333) exploit

www.smoothwall.org (Smoothwall Official Vendor Homepage) product

www.vulncheck.com/...express-interfacescgi-cross-site-script (VulnCheck Advisory: Smoothwall Express 3.1 'interfaces.cgi' Cross-Site Scripting) third-party-advisory

cve.org (CVE-2019-25390)

nvd.nist.gov (CVE-2019-25390)

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