Description
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: 2026-03-30
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Cross‑site scripting via unsanitized url parameter in /redirect.cgi
Action: Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 14 Apr 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Smoothwall smoothwall Express
CPEs cpe:2.3:o:smoothwall:smoothwall_express:*:*:*:*:*:*:*:*
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:update1:*:*:-:*:*:*
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:*:*:-:*:*:*
Vendors & Products Smoothwall smoothwall Express

Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Smoothwall
Smoothwall express
Vendors & Products Smoothwall
Smoothwall express

Tue, 31 Mar 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 30 Mar 2026 17:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Smoothwall Express < 3.1 Update 13 Reflected XSS in redirect.cgi via url Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


Subscriptions

Smoothwall Express Smoothwall Express
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-31T18:05:32.880Z

Reserved: 2026-02-19T19:51:07.327Z

Link: CVE-2026-27508

cve-icon Vulnrichment

Updated: 2026-03-31T17:51:54.480Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-30T17:16:15.440

Modified: 2026-04-14T16:32:57.800

Link: CVE-2026-27508

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T16:45:09Z

Weaknesses