CVE-2026-34819 MEDIUM

CVE-2026-34819: Endian Firewall /cgi-bin/openvpnclient.cgi REMARK Stored Cross-Site Scripting

Vendor Endian
Product Endian Firewall
Weakness CWE-79 · XSS
Published April 2, 2026
Last update May 25, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the REMARK parameter to /cgi-bin/openvpnclient.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

Key dates

02Disclosure timeline

April 2, 2026 CVE published
May 25, 2026 Record updated