CVE-2026-27508
Smoothwall Express versions prior to 3.1 Update 13 contain a reflected cross-site scripting vulnerability in the /redirect.cgi endpoint due to improper sanitation of the url parameter. Attackers can craft malicious URLs with javascript: schemes that execute arbitrary JavaScript in victims' browsers when clicked through the unsanitized link.
Published:Mar 30, 2026
Last Modified:Apr 15, 2026
EPS:Mar 30, 2026
EPSS Score:0.00031
CVSS Score:5.4
Affected Products
Vendor
Product
Action
Vendor
Smoothwall
Product
Express
Smoothwall
Express
Vendor
Smoothwall
Product
Smoothwall Express
Smoothwall
Smoothwall Express
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
