CVE-2026-27508Disclosure(smoothwall / smoothwall_express)

LOWCVSS 6.1 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

smoothwall CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter

Other references

https://community.smoothwall.org/forum/viewtopic.php?t=45095

Weakness type (CWE)

CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

smoothwall_express

Threat summary

4 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 4 signals
Disclosure: 4 classified signals
Peaked 1d ago at 2 mentions (2026-03-30); latest day: 2
4 total mentions across 2 days

Affected systems

Vendors

smoothwall

Products

smoothwall_express

1 version affected across 1 product

Deep dive

Activity timeline4 mentions / 2d

Signal classification1 categories

Disclosure

4100.0%

Referenced assets5 URLs

By indicator

Full discourse4 posts

Infoflowcloud@infoflowcloud191d
Disclosure
🚨*CVE* 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 … https://www.cve.org/CVERecord?id=CVE-2026-27508 ----- Traducción: CVE-2026-27508 Smo… http://infoflow.cloud`
Post summary
The post announces CVE‑2026‑27508, describing it as a reflected XSS flaw in Smoothwall Express's /redirect.cgi endpoint prior to version 3.1 Update 13.
0000024
65 followersView on X
CVE@CVEnew191d
Disclosure
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 … https://www.cve.org/CVERecord?id=CVE-2026-27508
Post summary
The statement reveals a reflected XSS flaw in Smoothwall Express pre‑3.1 Update 13 targeting the /redirect.cgi endpoint, with no discussion of PoC, exploitation, or mitigations.
00000131
56.9K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds191d
Disclosure
CVE-2026-27508 Smoothwall Express versions prior to 3.1 Update 13 contain a reflected c... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27508 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3
Post summary
The post announces CVE‑2026‑27508 affecting Smoothwall Express versions before 3.1 Update 13, noting a reflected vulnerability type and providing links to a detailed page and a vulnerability notification, but does not include PoC, exploit code, active exploitation, or patch details.
0000048
4.0K followersView on X
CyberDudeBivash® | Global Cybersecurity Company@cyberbivash191d
Disclosure
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-27508 - Smoothwall Express &lt; 3.1 Update 13 Reflected XSS in redirect.cgi via url Parameter Intel Report: https://ift.tt/yX7Ik42
Post summary
The alert announces CVE‑2026‑27508 as a reflected XSS in Smoothwall Express < 3.1 Update 13 redirect.cgi via url parameter, with an Intel report link, but does not include PoC, exploit code, or patch information.
0000041
280 followersView on X

CPE platform detail13 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

13 of 13 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	smoothwall	smoothwall_express	-	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-
OS	smoothwall	smoothwall_express	3.1	-	-

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What researchers are saying

CVE-2026-27508

Infoflowcloud@infoflowcloudDisclosure

The post announces CVE‑2026‑27508, describing it as a reflected XSS flaw in Smoothwall Express's /redirect.cgi endpoint prior to version 3.1 Update 13.

CVE@CVEnewDisclosure

The statement reveals a reflected XSS flaw in Smoothwall Express pre‑3.1 Update 13 targeting the /redirect.cgi endpoint, with no discussion of PoC, exploitation, or mitigations.

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The post announces CVE‑2026‑27508 affecting Smoothwall Express versions before 3.1 Update 13, noting a reflected vulnerability type and providing links to a detailed page and a vulnerability notification, but does not include PoC, exploit code, active exploitation, or patch details.

CyberDudeBivash® | Global Cybersecurity Company@cyberbivashDisclosure

The alert announces CVE‑2026‑27508 as a reflected XSS in Smoothwall Express < 3.1 Update 13 redirect.cgi via url parameter, with an Intel report link, but does not include PoC, exploit code, or patch information.