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CVE-2026-37503

MEDIUM CVSS: 6.9 Published: 2026-05-01 Modified: 2026-06-17

Description

Cross-Site Scripting (XSS) in V2Board thru 1.7.4. The custom_html field in theme configuration is rendered using Blade unescaped output in public/theme/v2board/dashboard.blade.php. An admin can inject arbitrary JavaScript via the saveThemeConfig API. All site visitors execute the payload, enabling cookie theft, session hijacking, or phishing.

Affected Platforms

V2Board V2Board

Weakness Type

CWE-79

References