CVE-2026-26352
Last modified
CVE-2026-26352 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authenticated attackers can inject arbitrary JavaScript through VPN configuration settings that executes when the affected page is viewed by other users.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authenticated attackers can inject arbitrary JavaScript through VPN configuration settings that executes when the affected page is viewed by other users.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Smoothwall | Smoothwall Express | <= 3.0 | — |
| Smoothwall | Smoothwall Express | 3.1 | Update1 |
References
- https://community.smoothwall.org/forum/viewtopic.php?t=45095Product, Release Notes
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-26352?
How severe is CVE-2026-26352?
How do I fix CVE-2026-26352?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-26342Tattile Smart+, Vega, and Basic device families firmware ver…9.8
- CVE-2026-26345SPIP before 4.4.8 contains a stored cross-site scripting (XS…8.6
- CVE-2026-26348Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-26349Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-2635MLflow Use of Default Password Authentication Bypass Vulnera…9.8
- CVE-2026-26351GetSimpleCMS Community Edition (CE) versions prior to 3.3.22…4.8
- CVE-2026-26354Dell PowerProtect Data Domain with Domain Operating System (…9.8
- CVE-2026-26355Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7,…6.5
- CVE-2026-26357Dell Unisphere for PowerMax, version(s) 9.2.4.x, contain(s) …5.4
- CVE-2026-26358Dell Unisphere for PowerMax, version(s) 10.2, contain(s) a M…8.8
- CVE-2026-26359Dell Unisphere for PowerMax, version(s) 10.2, contain(s) an …8.8
- CVE-2026-2636This vulnerability is caused by a CWE‑159: "Improper Handlin…5.5
Are you affected by CVE-2026-26352?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST