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MEDIUM · 6.4

CVE-2026-34819

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 ...

Vulnerability 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.

CVSS Score

6.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
EndianFirewall Community<= 3.3.25

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-34819?

CVE-2026-34819 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 ...

How severe is CVE-2026-34819?

CVE-2026-34819 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34819?

Check the references section above for vendor advisories and patch information. Affected products include: Endian Firewall Community.