Unrated severityNVD Advisory· Published Feb 16, 2026· Updated Mar 5, 2026
Smoothwall Express 3.1 'modem.cgi' Cross-Site Scripting
CVE-2019-25394
Description
Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple stored cross-site scripting vulnerabilities in the modem.cgi script that allow attackers to inject malicious scripts through POST parameters. Attackers can submit crafted payloads in parameters like INIT, HANGUP, SPEAKER_ON, SPEAKER_OFF, TONE_DIAL, and PULSE_DIAL to execute arbitrary JavaScript in users' browsers when the stored data is retrieved.
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Affected products
2- Range: 3.1
Patches
Vulnerability mechanics
References
3- www.exploit-db.com/exploits/46333mitreexploit
- www.vulncheck.com/advisories/smoothwall-express-modemcgi-cross-site-scriptingmitrethird-party-advisory
- www.smoothwall.orgmitreproduct
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