What’s Vulnerable › Vulnerabilities

CVE-2019-25385: Smoothwall Express 3.1 'outgoing.cgi' Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-16 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Smoothwall Express: 3.1-sp4

References

• http://www.smoothwall.org
• https://www.exploit-db.com/exploits/46333
• https://www.vulncheck.com/advisories/smoothwall-express-outgoingcgi-cross-site-scriptin

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