CVE intelligence and bounded remediation

CVE-2026-7559 — Affilia security vulnerability

Medium CVSS 4.3

The Affilia – Affiliate Program & Referral Tracking for WordPress plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 3.3.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to approve or reject affiliate referrals, credit commissions to affiliate wallets, delete referral records, and modify custom banner plugin options, enabling financial fraud. The nonce required to pass the only authentication check is embedded in every frontend page load via rtwalwm_global_params.rtwalwm_nonce, making it trivially accessible to any authenticated user regardless of role.

Severity
Medium
CVSS
4.3 (3.1)
Published
2026-07-11
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-862

Affected products

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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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