Stored cross-site scripting in TOA Corporation products - CVE-2026-20894

Vulnerability identifier: #VU121610

CSH Severity: Low

CVSS v4: 5.1 [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]

CVE-ID: CVE-2026-20894

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

N-C3100-3
N-C3120
N-C3120-3
N-C3200-3
N-C3220-3
N-C3420-3
N-C3420R3
N-C3500
N-C3500A
N-C3700
N-C3700A
N-C3820-3

Install updates from vendor's website.

N-C3100-3 - update to 1.3.1
N-C3120 - update to 1.3.1
N-C3120-3 - update to 1.3.1
N-C3200-3 - update to 1.3.1
N-C3220-3 - update to 1.3.1
N-C3420-3 - update to 1.3.1
N-C3420R3 - update to 1.3.1
N-C3500 - update to 1.3.1
N-C3500A - update to 1.3.1
N-C3700 - update to 1.3.1
N-C3700A - update to 1.3.1
N-C3820-3 - update to 1.3.1

• https://jvn.jp/en/jp/JVN08087148/index.html
• https://www.toa-products.com/securityinfo/pdf/tv2025-001jp.pdf

• Multiple vulnerabilities in TOA Network Cameras TRIFORA 3 series