Medium 6.1Published Feb 16, 2026

CVE-2019-25378Smoothwall Express 3.1 'proxy.cgi' Cross-Site Scripting

Updated under an hour ago (Oct 26, 2026, 4:30 PM ET)

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It affects Smoothwall Express and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Smoothwall Express

Exploited in the last 30 days

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple cross-site scripting vulnerabilities in the proxy.cgi endpoint that allow attackers to inject malicious scripts through parameters including CACHE_SIZE, MAX_SIZE, MIN_SIZE, MAX_OUTGOING_SIZE, and MAX_INCOMING_SIZE. Attackers can submit POST requests with script payloads to store or reflect arbitrary JavaScript code that executes in users' browsers when the proxy configuration page is accessed.

CVSS: 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Mar 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Smoothwall Smoothwall Express smoothwall:express (from the name)	3.1	CNA record
smoothwall smoothwall_express smoothwall:smoothwall_express	3.1	NVD

References

References

https://www.exploit-db.com/exploits/46333	exploit, third-party-advisory, vdb-entry
http://www.smoothwall.org	product
https://www.vulncheck.com/advisories/smoothwall-express-proxycgi-cross-site-scripting	third-party-advisory, broken-link

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.