Vendor
FOSSBilling
43 known vulnerabilities.
Products
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Medium 4.3
FOSSBilling before 0.8.9 Login CSRF via Staff Guest Login API
FOSSBilling before 0.8.9 contains a Cross-Site Request Forgery vulnerability in the staff guest login endpoint (POST /api/guest/staff/login) that allows remote attackers to force authentication because checkGuestClientAuthentication() only allowlists client_l…
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Medium 6.9
FOSSBilling: Unauthenticated client account enumeration via guest signup endpoint
FOSSBilling is an open source billing and client-management platform. From 0.1.0 until 0.8.7, the unauthenticated POST /api/guest/client/create endpoint reveals whether a submitted email belongs to a registered client because guest signup returns a distinct u…
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Medium 6.9
FOSSBilling: Unauthenticated attacker can probe existence of arbitrary files via guest/system/template_exists
FOSSBilling is an open source billing and client-management platform. From 0.1.0 until 0.8.7, the unauthenticated api/guest/system/template_exists endpoint permits path traversal because templateExists uses Path::join on the attacker-controlled file parameter…
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Medium 5.1
FOSSBilling: Downloadable product files can be overwritten through filename collisions
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.1, downloadable product files are stored using a deterministic filename-derived path. When an administrator uploads a file for a downloadable product, FOSSBilling st…
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Medium 6.9CVE-2026-53647 Public exploit
FOSSBilling vulnerable to unauthenticated API key configuration disclosure via guest Serviceapikey get_info endpoint
FOSSBilling is a free, open-source billing and client management system. In versions 0.5.3 through 0.7.2, the Guest `serviceapikey/get_info` API endpoint is accessible without authentication. Any caller with a valid API key can retrieve all custom configurati…
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Medium 5.3
FOSSBilling: Unverified clients can access client-area pages when email confirmation is required
FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when the "Require Email Confirmation" setting is enabled, a logged-in client with an unverified email address (`email_approved = 0`) can access all clien…
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Medium 4.8
FOSSBilling has stored XSS in client email views via unescaped content in JavaScript template literal
FOSSBilling is a free, open-source billing and client management system. Versions 0.6.0 through 0.7.2 have a stored cross-site scripting (XSS) vulnerability in the client-facing email history views of FOSSBilling. Email HTML content (`content_html`) is render…
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Medium 6.9
FOSSBilling has race condition in cart checkout that bypasses promo code usage limits
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, a race condition in the cart checkout flow allows an authenticated client to apply a promo code beyond its configured maximum uses. By sending concurrent checkout…
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Medium 6.9
FOSSBilling: Mass assignment of group_id in guest client registration allows unauthorized promo code use
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, an unauthenticated mass assignment vulnerability in the client self-registration endpoint allows any visitor to assign themselves to an arbitrary client group dur…
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Medium 6.9
FOSSBilling has improper SQL neutralization in `Massmailer` recipient filters
FOSSBilling is a free, open-source billing and client management system. Versions 0.6.0 through 0.7.2 have a SQL injection vulnerability in the `Massmailer` module filter functionality. An authenticated administrator can supply crafted filter values when upda…
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Medium 6.9
FOSSBilling: Unauthenticated update patcher endpoint allows remote maintenance execution
FOSSBilling is a free, open-source billing and client management system. In versions 0.5.4 through 0.7.2, the /run-patcher maintenance endpoint in FOSSBilling was accessible without authentication, which allowed unauthenticated remote users to trigger update …
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Medium 5.1
FOSSBilling: IDOR Vulnerability in Support Ticket Creation
FOSSBilling is a billing and client management system that automates invoicing, payments, and communication for online service businesses. Versions 0.6.21 through 0.7.2 are vulnerable to IDOR through the support ticket creation workflow. By manipulating rel_i…
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Medium 6.3
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 limite…
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Medium 4.8
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 exter…
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Medium 6.9
FOSSBilling version exposed via asset cache buster
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 `hide_version_public` security setting. The FOSSBilling version …
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Medium 5.4
Cross-site Scripting (XSS) - Reflected in fossbilling/fossbilling
Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.
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Medium 6.8
Session Fixation in fossbilling/fossbilling
Session Fixation in GitHub repository fossbilling/fossbilling prior to 0.5.1.
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Medium 5.4
Business Logic Errors in fossbilling/fossbilling
Business Logic Errors in GitHub repository fossbilling/fossbilling prior to 0.5.0.
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Medium 5.4
Business Logic Errors in fossbilling/fossbilling
Business Logic Errors in GitHub repository fossbilling/fossbilling prior to 0.5.0.
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Medium 5.4
Insufficient Granularity of Access Control in fossbilling/fossbilling
Insufficient Granularity of Access Control in GitHub repository fossbilling/fossbilling prior to 0.5.0.
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Medium 4.6
Missing Authorization in fossbilling/fossbilling
Missing Authorization in GitHub repository fossbilling/fossbilling prior to 0.5.0.