Smoothwall Express versions prior to 3.1 Update 13 are affected by CVE-2026-27508, a reflected cross-site scripting (XSS) vulnerability in the /redirect.cgi endpoint due to improper sanitization of the 'url' parameter. This medium-severity flaw (CVSS 5.4) allows attackers to execute arbitrary JavaScript in a victim's browser if they click a specially crafted malicious URL. The attack requires user interaction but has low complexity, potentially leading to client-side attacks like information disclosure or session hijacking. Currently, there is no evidence of active exploitation, public exploit code availability, or significant community discussion or media coverage regarding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.0CPE matchmatch criteria | cpe:2.3:o:smoothwall:smoothwall_express:*:*:*:*:*:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:o:smoothwall:smoothwall_express:3.1:update1:*:*:-:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:o:smoothwall:smoothwall_express:3.1:update10:*:*:-:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:o:smoothwall:smoothwall_express:3.1:update11:*:*:-:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:o:smoothwall:smoothwall_express:3.1:update12:*:*:-:*:*:* |
CVSS version used by this source: 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.