CVE-2026-26352 identifies a stored cross-site scripting (XSS) vulnerability in Smoothwall Express versions prior to 3.1 Update 13, specifically within the /cgi-bin/vpnmain.cgi script. Authenticated attackers can inject malicious JavaScript via VPN configuration settings due to improper input sanitation, which executes when other users view the affected page. Rated as Medium severity (CVSS 5.4), this flaw requires low privileges and user interaction, potentially leading to low impact on confidentiality and integrity. There is currently no evidence of active exploitation, nor are public exploit modules or proof-of-concept code available. Community discussion and media coverage for this CVE are also absent.
| 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:L/UI:P/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, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.