CVE-2026-27508

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

5.4 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://community.smoothwall.org/forum/viewtopic.php?t=45095 Product Release Notes
https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:smoothwall:smoothwall_express:*:*:*:*:*:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update1:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update10:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update11:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update12:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update2:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update3:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update4:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update5:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update6:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update7:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update8:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update9:*:*:-:*:*:*
History

14 Apr 2026, 16:32

Type Values Removed Values Added
References () https://community.smoothwall.org/forum/viewtopic.php?t=45095 - () https://community.smoothwall.org/forum/viewtopic.php?t=45095 - Product, Release Notes
References () https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter - () https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter - Third Party Advisory
CPE cpe:2.3:o:smoothwall:smoothwall_express:3.1:update6:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update3:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update10:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update5:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:*:*:*:*:*:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update1:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update8:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update11:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update12:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update2:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update9:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update4:*:*:-:*:*:*
cpe:2.3:o:smoothwall:smoothwall_express:3.1:update7:*:*:-:*:*:*
First Time Smoothwall smoothwall Express
Smoothwall

01 Apr 2026, 14:24

Type Values Removed Values Added
Summary
  • (es) Las versiones de Smoothwall Express anteriores a 3.1 Update 13 contienen una vulnerabilidad de cross-site scripting reflejado en el endpoint /redirect.cgi debido a una sanitización inadecuada del parámetro url. Los atacantes pueden crear URLs maliciosas con esquemas javascript: que ejecutan JavaScript arbitrario en los navegadores de las víctimas cuando se hace clic en el enlace no sanitizado.

30 Mar 2026, 17:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-30 17:16

Updated : 2026-04-14 16:32

NVD link : CVE-2026-27508

Mitre link : CVE-2026-27508

CVE.ORG link : CVE-2026-27508

JSON object : View

Products Affected

smoothwall

  • smoothwall_express
CWE
CWE-79

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