| Titre | osTicket 1.18.3 Cross-Site Request Forgery |
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| Description | osTicket is a widely-used open source support ticket system with over 3,700 GitHub stars. The application's URL dispatcher allows overriding the HTTP request method via a _method GET parameter. This override occurs after the CSRF token validation has already executed, creating a bypass that allows an unauthenticated attacker to perform state-changing actions on behalf of authenticated staff members by embedding a hidden <img> tag in a support ticket. I've submitted PR with the fix https://github.com/osTicket/osTicket/pull/6945 |
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| La source | ⚠️ https://github.com/az10b/security-advisories/blob/main/csrf_bypass_osTicket.md |
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| Utilisateur | AliAz (UID 74624) |
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| Soumission | 11/04/2026 05:26 (il y a 6 mois) |
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| Modérer | 08/05/2026 22:09 (28 days later) |
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| Statut | Accepté |
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| Entrée VulDB | 362346 [osTicket jusqu’à 1.18.3 Dispatcher class.dispatcher.php _method cross site request forgery] |
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| Points | 20 |
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