CVE intelligence and bounded remediation

CVE-2021-36913 — Redirection-For-Contact-Form7 Redirection For Contact Form 7 security vulnerability

High CVSS 7.5

Unauthenticated Options Change and Content Injection vulnerability in Qube One Redirection for Contact Form 7 plugin <= 2.4.0 at WordPress allows attackers to change options and inject scripts into the footer HTML. Requires an additional extension (plugin) AccessiBe.

Severity
High
CVSS
7.5 (3.1)
Published
2022-10-11
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-284, CWE-74

Affected products

  • redirection-for-contact-form7 / redirection_for_contact_form_7

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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