CVE-2019-25378CWE-79

Smoothwall Express 3.1 'proxy.cgi' Cross-Site Scripting

Medium · published February 16, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
17.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00268 · 17.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-16T17:04Z
EPSS history
Timeline
  • 16 FEB 17:04Z
    Smoothwall Express 3.1 'proxy.cgi' Cross-Site Scripting
    cvelistv5