CVE-2026-37503

Published: May 1, 2026Modified: Jun 17, 2026

4.8

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Exploitability: 1.7 / Impact: 2.7

Source: NVD

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 (1)

Products: V2board: V2board

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
V2board V2board	Up to 1.7.4

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9

Source: cve@mitre.org

ExploitThird Party Advisory

https://github.com/v2board/v2board

Source: cve@mitre.org

Product

Timeline

No history available yet.