CVE intelligence and bounded remediation

CVE-2021-47984 — WordPress Plugin WP24 Domain Check security vulnerability

Medium CVSS 6.4

WordPress Plugin WP24 Domain Check 1.6.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the fieldnameDomain parameter. Attackers can inject JavaScript payloads through the plugin settings form at options.php that execute in the browsers of administrators viewing the settings page.

Severity
Medium
CVSS
6.4 (3.1)
Published
2026-06-08
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-79

Affected products

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Matched remediation archetype

Cross-site scripting and unsafe browser output

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Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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