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Description

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the xtaccess.cgi endpoint. Attackers can inject script payloads through the EXT, DEST_PORT, or COMMENT parameters via POST requests to execute arbitrary JavaScript in victim browsers.

PUBLISHED Reserved 2026-02-16 | Published 2026-02-16 | Updated 2026-02-17 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

3.1
affected

Credits

Ozer Goker finder

References

www.exploit-db.com/exploits/46333 (ExploitDB-46333) exploit

www.smoothwall.org (Smoothwall Vendor Homepage) product

www.vulncheck.com/...express-xtaccesscgi-cross-site-scriptin (VulnCheck Advisory: Smoothwall Express 3.1 'xtaccess.cgi' Cross-Site Scripting) third-party-advisory

cve.org (CVE-2019-25387)

nvd.nist.gov (CVE-2019-25387)

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