CVE-2019-25380

low-risk
Published 2026-02-16

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the dhcp.cgi script that allow attackers to inject malicious scripts through multiple parameters. Attackers can submit POST requests to dhcp.cgi with script payloads in parameters such as BOOT_SERVER, BOOT_FILE, BOOT_ROOT, START_ADDR, END_ADDR, DNS1, DNS2, NTP1, NTP2, WINS1, WINS2, DEFAULT_LEASE_TIME, MAX_LEASE_TIME, DOMAIN_NAME, NIS_DOMAIN, NIS1, NIS2, STATIC_HOST, STATIC_DESC, STATIC_MAC, and STATIC_IP to execute arbitrary JavaScript in user browsers.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Smoothwall

References (3)

Product http://www.smoothwall.org
Exploit https://www.exploit-db.com/exploits/46333
Broken Link https://www.vulncheck.com/advisories/smoothwall-express-dhcpcgi-cross-site-scrip...
28
/ 100
low-risk
Severity 23/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal