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CVE-2026-82911— CSRF in Prospero Flow CRM order confirmation allows unauthorized order state changes

Quick assessment

Affected
Roskus Prospero Flow CRM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

跨站请求伪造（CSRF）漏洞：Roskus Prospero Flow CRM 5.15.11 之前版本中 OrderConfirmController 的 GET /order/confirm/{order_number} 在 Roskus Prospero Flow CRM 5.15.11 之前版本中， 中处理 的路由存在跨站请求伪造（CSRF）漏洞，允许未认证的攻击者通过引导已认证用户访问一个精心构造的页面，代表该用户确认任意订单。 Laravel 的 中间件仅在 POST、PUT、PATCH 和 DELET

CVSS 5.1 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
Roskus Prospero Flow CRM < 5.15.11 affected
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I. Basic Information for CVE-2026-82911

Vulnerability Information
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Vulnerability Title
CSRF in Prospero Flow CRM order confirmation allows unauthorized order state changes
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Roskus Prospero Flow CRM 0 ~ 5.15.11 cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82911

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III. Intelligence Information for CVE-2026-82911

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Patches & Fixes for CVE-2026-82911 (1)

IV. Related Vulnerabilities

Same product: Prospero Flow CRM
Same vendor: Roskus
Same weakness: CWE-352

V. Comments for CVE-2026-82911

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