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5.1

Smoothwall Express: Malicious scripts can be injected through web form entries

CVE-2019-25383
Summary

Smoothwall Express has a security flaw that allows hackers to inject malicious scripts into your web browser if you fill out certain forms on the Smoothwall Express website. This could allow the hacker to take control of your browser or steal sensitive information. To protect yourself, update to the latest version of Smoothwall Express or patch the affected script.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
VendorProductAffected versionsFix available
smoothwall smoothwall_express 3.1 –
Original title
Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the apcupsd.cgi script that allow attackers to inject malicious scripts through m...
Original description
Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the apcupsd.cgi script that allow attackers to inject malicious scripts through multiple POST parameters. Attackers can submit crafted POST requests with script payloads in parameters like BATTLEVEL, RTMIN, BATTDELAY, TO, ANNOY, UPSIP, UPSNAME, UPSPORT, POLLTIME, UPSUSER, NISPORT, UPSAUTH, EMAIL, FROM, CC, SMSEMAIL, SMTPSERVER, PORT, USER, and EMAIL_PASSWORD to execute arbitrary JavaScript in victim browsers.
nvd CVSS3.1 6.1
nvd CVSS4.0 5.1
Vulnerability type
CWE-79 Cross-site Scripting (XSS)
Published: 16 Feb 2026 · Updated: 11 Mar 2026 · First seen: 6 Mar 2026