CVE-2026-34819

MEDIUM

6.4

Description

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.

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/2/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-79

References

https://help.endian.com/hc/en-us/sections/360004371358-Community(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-openvpnclient-cgi-remark-stored-cross-site-scripting(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.