CVE intelligence and bounded remediation

CVE-2021-24997 — Wp-Guppy Wp Guppy security vulnerability

Medium CVSS 6.5

The WP Guppy WordPress plugin before 1.3 does not have any authorisation in some of the REST API endpoints, allowing any user to call them and could lead to sensitive information disclosure, such as usernames and chats between users, as well as be able to send messages as an arbitrary user

Severity
Medium
CVSS
6.5 (3.1)
Published
2021-12-27
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-862

Affected products

  • wp-guppy / wp_guppy

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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