PT-2026-36484

Name of the Vulnerable Software and Affected Versions V2Board versions prior to 1.7.5 Description Cross-Site Scripting XSS occurs when the custom html field in the theme configuration is rendered using unescaped Blade output in the 'public/theme/v2board/dashboard.blade.php' file. An administrator...

CVE-2026-37503

Cross-Site Scripting XSS in V2Board thru 1.7.4. The customhtml 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...

CVE-2026-37504

Sensitive servertoken exposed via GET parameter in V2Board thru 1.7.4. In app/Http/Controllers/Server/UniProxyController.php, the server authentication token is accepted via GET parameter transmission. The token appears in URLs such as /api/v1/server/UniProxy/user?token=SECRET, causing it to be...

EUVD-2026-26667

Cross-Site Scripting XSS in V2Board thru 1.7.4. The customhtml 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...

V2Board 安全漏洞

V2Board is a multi-user proxy service management panel for V2Board open source. A security vulnerability exists in V2Board 1.7.4 and earlier versions that originates from server authentication tokens being transmitted via GET parameters, which could lead to an attacker extracting the token from a...

CVE-2026-39912

V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the loginwithmaillinkenable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receiv...

CVE-2026-39912

V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the loginwithmaillinkenable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receiv...

CVE-2026-39912

The CVE-2026-39912 entry describes a token exposure in the loginWithMailLink flow affecting V2Board (1.6.1–1.7.4) and Xboard (up to 0.1.9). When login_with_mail_link_enable is active, the HTTP response body reveals the full authentication URL, allowing an unauthenticated attacker to POST to login...

CVE-2026-39912 v2board / Xboard Authentication Token Exposure via loginWithMailLink

V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the loginwithmaillinkenable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receiv...

CVE-2026-39912 v2board / Xboard Authentication Token Exposure via loginWithMailLink

V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the loginwithmaillinkenable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receiv...

CVE-2026-39912 v2board / Xboard Authentication Token Exposure via loginWithMailLink

V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the loginwithmaillinkenable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receiv...

Exploit for CVE-2026-39912

CVE-2026-39912 - Xboard / V2Board Unauth Account Takeover M...

V2Board 安全漏洞

V2Board is an open-source multi-user agent service management panel developed by V2Board. Versions 1.6.1 to 1.7.4 of V2Board, as well as Xboard 0.1.9 and earlier versions, have security vulnerabilities. These vulnerabilities stem from the HTTP response body of the loginWithMailLink endpoint...