CVE intelligence and bounded remediation

CVE-2021-24742 — Radiustheme Logo Slider And Showcase security vulnerability

Medium CVSS 6.5

The Logo Slider and Showcase WordPress plugin before 1.3.37 allows Editor users to update the plugin's settings via the rtWLSSettings AJAX action because it uses a nonce for authorisation instead of a capability check.

Severity
Medium
CVSS
6.5 (3.1)
Published
2021-11-01
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-863

Affected products

  • radiustheme / logo_slider_and_showcase

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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