CVE-2026-34804

MEDIUM

Endian Firewall /manage/qos/rules/ dscp Stored Cross-Site Scripting

Title source: cna

Description

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

References (2)

Core 2

Core References

Release Notes release-notes

Endian Release Notes

https://help.endian.com/hc/en-us/sections/360004371358-Community

Third Party Advisory third-party-advisory

VulnCheck Advisory: Endian Firewall /manage/qos/rules/ dscp Stored Cross-Site Scripting

https://www.vulncheck.com/advisories/endian-firewall-manage-qos-rules-dscp-stored-cross-site-scripting

Scores

CVSS v3 6.4

EPSS 0.0017

EPSS Percentile 6.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (2)

Endian/Endian Firewall 3.3.25

endian/firewall_community < 3.3.25

Published Apr 02, 2026

Tracked Since Apr 02, 2026