CVE-2019-25378

MEDIUM

Smoothwall Express 3.1-SP4-polar-x86_64-update9 - Stored and Reflected Cross-Site Scripting via proxy.cgi Parameters

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25378. PoCs published by Ozer Goker.

AI-analyzed exploit summary This exploit demonstrates multiple stored and reflected XSS vulnerabilities in Smoothwall Express 3.1-SP4-polar-x86_64-update9. The payloads are simple JavaScript alerts injected into various parameters of CGI scripts.

Description

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.

Exploits (1)

exploitdb WORKING POC
by Ozer Goker · textwebappscgi
https://www.exploit-db.com/exploits/46333

This exploit demonstrates multiple stored and reflected XSS vulnerabilities in Smoothwall Express 3.1-SP4-polar-x86_64-update9. The payloads are simple JavaScript alerts injected into various parameters of CGI scripts.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Smoothwall Express 3.1-SP4-polar-x86_64-update9
No auth needed
Prerequisites: Access to the web interface of the target Smoothwall Express instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/46333
Various Sources product
http://www.smoothwall.org

Scores

CVSS v3 6.1
EPSS 0.0022
EPSS Percentile 12.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
smoothwall/smoothwall_express 3.1 (2 CPE variants)
Published Feb 16, 2026
Tracked Since Feb 18, 2026