CVE-2026-34803

Description

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

CVSS Vector

References

• https://help.endian.com/hc/en-us/sections/360004371358-Community
• https://www.vulncheck.com/advisories/endian-firewall-manage-qos-classes-name-stored-cross-site-scripting