CVE-2026-28496 FOSSBilling: Server-side template injection in Twig template rendering enables information disclosure and RCE

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

CVE-2026-28496 FOSSBilling: Server-side template injection in Twig template rendering enables information disclosure and RCE

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

EUVD-2026-38455

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

PT-2026-51591

Name of the Vulnerable Software and Affected Versions FOSSBilling versions prior to 0.8.0 Description A query-construction flaw in client list endpoints allows authenticated clients to bypass tenant scoping and retrieve data from other clients. The issue occurs in the getSearchQuery functions of...

PT-2026-51584

Name of the Vulnerable Software and Affected Versions FOSSBilling versions 0.6.21 through 0.7.2 Description An Insecure Direct Object Reference IDOR exists in the support ticket creation workflow. An authenticated client can create a support ticket that references an order belonging to another...

Exploit for CVE-2026-53646

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CVE-2026-43924

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Redirect module does not validate the URL scheme of administrator-configured destination URLs before storing or issuing redirects. This allows arbitrary external URLs to be configured as redirect...

CVE-2026-40495

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 leak the exact system version through asset cache buster parameters in HTML output, bypassing the hideversionpublic security setting. The FOSSBilling version is embedded in the query string of every...

CVE-2026-43926

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint /client/reset-password-confirm/:hash is handled by a non-API controller and is not covered by FOSSBilling's rate limiter, which only applies to /api/ routes...

CVE-2026-43926

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint /client/reset-password-confirm/:hash is handled by a non-API controller and is not covered by FOSSBilling's rate limiter, which only applies to /api/ routes...

CVE-2026-43926 FOSSBilling's password reset confirmation endpoint lacks rate limiting

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint /client/reset-password-confirm/:hash is handled by a non-API controller and is not covered by FOSSBilling's rate limiter, which only applies to /api/ routes...

CVE-2026-43926

FOSSBilling prior to 0.8.0 allows probing the password-reset flow because the non-API controller for /client/reset-password-confirm/:hash is not rate-limited like /api/* endpoints. The endpoint may reveal valid vs invalid tokens (200 vs 302), enabling unlimited token guessing until expiry. Token ...

PT-2026-46229

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint /client/reset-password-confirm/:hash is handled by a non-API controller and is not covered by FOSSBilling's rate limiter, which only applies to /api/ routes...

FOSSBilling 安全漏洞

FOSSBilling is an open-source billing and customer management platform for hosting service providers and digital service providers. Versions of FOSSBilling prior to 0.8.0 contained security vulnerabilities. These vulnerabilities stemmed from the password reset confirmation endpoint being...

CVE-2026-40495

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 leak the exact system version through asset cache buster parameters in HTML output, bypassing the hideversionpublic security setting. The FOSSBilling version is embedded in the query string of every a...

CVE-2026-43924 FOSSBilling has an open redirect via administrator-configured redirect targets

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Redirect module does not validate the URL scheme of administrator-configured destination URLs before storing or issuing redirects. This allows arbitrary external URLs to be configured as redirect...

CVE-2026-43924

Summary: CVE-2026-43924 affects FOSSBilling prior to v0.8.0, where the Redirect module does not validate URL schemes for administrator-configured redirect targets, allowing open redirects. This can cause legitimate user traffic to be redirected to attacker-controlled sites via a 301 response (bro...

CVE-2026-43924

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Redirect module does not validate the URL scheme of administrator-configured destination URLs before storing or issuing redirects. This allows arbitrary external URLs to be configured as redirect...

CVE-2026-43924 FOSSBilling has an open redirect via administrator-configured redirect targets

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Redirect module does not validate the URL scheme of administrator-configured destination URLs before storing or issuing redirects. This allows arbitrary external URLs to be configured as redirect...

CVE-2026-40495

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 leak the exact system version through asset cache buster parameters in HTML output, bypassing the hideversionpublic security setting. The FOSSBilling version is embedded in the query string of every...