CVE-2019-25385
Received Received - Intake
Reflected XSS in Smoothwall Express Outgoing.cgi Enables Session Theft

Publication date: 2026-02-16

Last updated on: 2026-02-20

Assigner: VulnCheck

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.
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Meta Information
Published
2026-02-16
Last Modified
2026-02-20
Generated
2026-06-16
AI Q&A
2026-02-16
EPSS Evaluated
2026-06-14
NVD
CVE-2019-25385
EUVD
EUVD-2019-19630
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
smoothwall smoothwall_express 3.1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a reflected cross-site scripting (XSS) issue in Smoothwall Express 3.1-SP4-polar-x86_64-update9. It occurs because the application improperly handles the MACHINE and MACHINECOMMENT parameters, allowing attackers to inject malicious scripts.

Attackers can send specially crafted POST requests to the outgoing.cgi endpoint containing script payloads. When these scripts are executed in the browsers of users who receive the response, the attacker can run arbitrary JavaScript code.

Impact Analysis

The vulnerability can lead to attackers executing arbitrary JavaScript in users' browsers. This can result in the theft of session data, which may allow attackers to hijack user sessions.

Such attacks can compromise user accounts, lead to unauthorized actions on behalf of users, and potentially expose sensitive information.

Compliance Impact

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