CVE intelligence and bounded remediation

CVE-2021-24400 — Wp-Display-Users Project Wp-Display-Users security vulnerability

High CVSS 7.2

The Edit Role functionality in the Display Users WordPress plugin through 2.0.0 had an `id` parameter which is not sanitised, escaped or validated before inserting to a SQL statement, leading to SQL injection.

Severity
High
CVSS
7.2 (3.1)
Published
2021-09-20
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-89

Affected products

  • wp-display-users_project / wp-display-users

Matched remediation archetype

SQL and data-query injection

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Check exposure

  • Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
  • Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
  • Check both direct queries and second-order use of previously stored values.

Remediate safely

  • Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
  • Remove raw query concatenation and give the application account only the tables and operations it requires.
  • Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.

Authoritative sources

Complete CVE record and remediation plan

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