CVE intelligence and bounded remediation

CVE-2025-50850 — Cs-Cart Cs-Cart security vulnerability

High CVSS 8.6

An issue was discovered in CS Cart 4.18.3 allows the vendor login functionality lacks essential security controls such as CAPTCHA verification and rate limiting. This allows an attacker to systematically attempt various combinations of usernames and passwords (brute-force attack) to gain unauthorized access to vendor accounts. The absence of any blocking mechanism makes the login endpoint susceptible to automated attacks.

Severity
High
CVSS
8.6 (3.1)
Published
2025-07-31
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-284, CWE-804

Affected products

  • cs-cart / cs-cart / 4.18.3

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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