CVE-2026-37503
MEDIUM
NVD
CVSS Score
6.9
Severity
MEDIUM
Published
May 01, 2026
Vendor
unknown
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.