Reflected Cross-Site Scripting in Smoothwall Express by Smoothwall
CVE-2019-25387

5.1MEDIUM

Key Information:

Vendor

Smoothwall

Status
Smoothwall Express
Vendor
CVE Published:
16 February 2026

Badges

👾 Exploit Exists

What is CVE-2019-25387?

Smoothwall Express 3.1-SP4-polar-x86_64-update9 is susceptible to a reflected cross-site scripting vulnerability. This security flaw enables unauthenticated attackers to manipulate the xtaccess.cgi endpoint by injecting malicious scripts through carefully crafted input. Attackers can exploit this vulnerability by sending POST requests containing script payloads in parameters such as EXT, DEST_PORT, or COMMENT. When successful, these attacks can lead to the execution of arbitrary JavaScript code in the browsers of unaware victims, posing a significant risk to user data and privacy.

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Affected Version(s)

Smoothwall Express 3.1

References

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

CVSS V4

Score:
5.1
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
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