CVE-2019-25388
Received Received - Intake

Reflected XSS in Smoothwall Express ipblock.cgi Allows Script Injection

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 unauthenticated attackers to inject malicious scripts by submitting crafted input to the ipblock.cgi endpoint. Attackers can inject script tags through the SRC_IP and COMMENT parameters in POST requests to execute arbitrary JavaScript in users' browsers.

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Meta Information

Published
2026-02-16
Last Modified
2026-02-20
Generated
2026-07-06
AI Q&A
2026-02-16
EPSS Evaluated
2026-07-05
NVD
CVE-2019-25388
EUVD
EUVD-2019-19628

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 found in Smoothwall Express 3.1-SP4-polar-x86_64-update9. It allows unauthenticated attackers to inject malicious scripts by sending specially crafted input to the ipblock.cgi endpoint. Specifically, attackers can inject script tags through the SRC_IP and COMMENT parameters in POST requests, which then execute arbitrary JavaScript in the browsers of users who access the affected functionality.

Impact Analysis

This vulnerability can impact you by allowing attackers to execute arbitrary JavaScript code in your users' browsers without authentication. This can lead to theft of sensitive information such as cookies or session tokens, unauthorized actions performed on behalf of users, and potential compromise of user accounts or data integrity.

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