CVE intelligence and bounded remediation

CVE-2024-1478 — Helderk Maintenance Mode security vulnerability

Medium CVSS 5.3

The Maintenance Mode plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.0.1 via the REST API. This makes it possible for unauthenticated attackers to obtain post and page content via API thus bypassing the content protection provided by the plugin.

Severity
Medium
CVSS
5.3 (3.1)
Published
2024-03-05
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-284

Affected products

  • helderk / maintenance_mode

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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