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Description

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.

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




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/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-outgoingcgi-cross-site-scriptin (VulnCheck Advisory: Smoothwall Express 3.1 'outgoing.cgi' Cross-Site Scripting) third-party-advisory

cve.org (CVE-2019-25385)

nvd.nist.gov (CVE-2019-25385)

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