Vulnerability Description
Cross-Site Request Forgery (CSRF) in the OrderConfirmController at GET /order/confirm/{order_number} in Roskus Prospero Flow CRM before 5.15.11 allows an unauthenticated attacker to confirm any order on behalf of an authenticated user by directing them to a crafted page. Laravel's VerifyCsrfToken middleware enforces CSRF tokens only on POST, PUT, PATCH, and DELETE requests; the Route::get declaration leaves this state-changing action unprotected. Session cookies configured with SameSite=Lax are automatically included in top-level cross-site navigation, so a single link click triggers OrderConfirmController::confirm() and transitions the target order from pending to confirmed without user authorization. Because order numbers are sequential integers, an attacker can enumerate and confirm all existing orders in a single automated sweep.
Related Weaknesses (CWE)
References
- https://github.com/Roskus/prospero-flow-crm/commit/a90c0c8c
- https://secur0.com/en/cna/cve-list/cve-2026-82911-csrf-order-confirmation-prospe
FAQ
What is CVE-2026-82911?
CVE-2026-82911 is a documented vulnerability. Cross-Site Request Forgery (CSRF) in the OrderConfirmController at GET /order/confirm/{order_number} in Roskus Prospero Flow CRM before 5.15.11 allows an unauthenticated attacker to confirm any order ...
How severe is CVE-2026-82911?
CVSS scoring is not yet available for CVE-2026-82911. Check NVD for updates.
Is there a patch for CVE-2026-82911?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.