CVE-2026-34809CWE-79

Endian Firewall /cgi-bin/zonefw.cgi remark Stored Cross-Site Scripting

Medium · published April 2, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
13.9
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
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
EPSS
0.00237 · 13.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-02T14:46Z
EPSS history
Timeline
  • 02 APR 14:46Z
    Endian Firewall /cgi-bin/zonefw.cgi remark Stored Cross-Site Scripting
    cvelistv5