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.
References
| Link | Resource |
|---|---|
| https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9 | Exploit Third Party Advisory |
| https://github.com/v2board/v2board | Product |
Configurations
History
11 May 2026, 19:22
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
V2board v2board
V2board |
|
| CPE | cpe:2.3:a:v2board:v2board:*:*:*:*:*:*:*:* | |
| References | () https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9 - Exploit, Third Party Advisory | |
| References | () https://github.com/v2board/v2board - Product |
01 May 2026, 20:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-79 |
01 May 2026, 16:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-01 16:16
Updated : 2026-05-11 19:22
NVD link : CVE-2026-37503
Mitre link : CVE-2026-37503
CVE.ORG link : CVE-2026-37503
JSON object : View
Products Affected
v2board
- v2board
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')