Stored Cross-Site Scripting Vulnerabilities in Smoothwall Express
CVE-2019-25395

5.3MEDIUM

Key Information:

Vendor

Smoothwall

Status
Smoothwall Express
Vendor
CVE Published:
16 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25395?

Smoothwall Express 3.1-SP4-polar-x86_64-update9 is vulnerable to multiple stored cross-site scripting (XSS) issues within the preferences.cgi script. Malicious actors can exploit these vulnerabilities by injecting harmful scripts into the HOSTNAME, KEYMAP, and OPENNESS parameters. By submitting specifically crafted POST requests to preferences.cgi, attackers can successfully store these malicious scripts. Consequently, any user who later accesses the preferences page of the application could unknowingly execute these scripts in their browser, leading to potential data exposure and compromise of user sessions.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Smoothwall Express 3.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-25395 - Proof of Concept

References

https://www.exploit-db.com/exploits/46333
exploit
http://www.smoothwall.org
product
https://www.vulncheck.com/advisories/smoothwall-express-p...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ozer Goker
JSON
.