CVE-2026-34804 identifies a stored cross-site scripting (XSS) vulnerability in Endian Firewall version 3.3.25 and prior. An authenticated attacker can inject arbitrary JavaScript into the dscp parameter within the /manage/qos/rules/ interface. This medium-severity vulnerability (CVSS 6.4) allows a low-privileged attacker to store malicious scripts that execute in the browsers of other users viewing the affected page, potentially leading to information disclosure or session hijacking. The attack is network-based and does not require user interaction for the stored script to execute once the page is accessed. Currently, there is no public exploit code available, nor is it listed on the CISA KEV catalog, indicating no active exploitation or significant community attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.3.25CPE matchmatch criteria | cpe:2.3:a:endian:firewall_community:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.