CVE-2026-4354 MEDIUM

CVE-2026-4354: TRENDnet TEW-824DRU Web apply_sec.cgi sub_420A78 cross site scripting

Vendor Trendnet
Product TEW-824DRU
Weakness CWE-79 · XSS
Published March 17, 2026
Last update March 18, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in TRENDnet TEW-824DRU 1.010B01/1.04B01. The impacted element is the function sub_420A78 of the file apply_sec.cgi of the component Web Interface. Such manipulation of the argument Language leads to cross site scripting. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

March 17, 2026 CVE published
March 18, 2026 Record updated