CVE intelligence and bounded remediation

CVE-2021-24596 — Itservicejung Youforms-Free-For-Copecart security vulnerability

Medium CVSS 4.8

The youForms for WordPress plugin through 1.0.5 does not sanitise escape the Button Text field of its Templates, allowing high privilege users (editors and admins) to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Severity
Medium
CVSS
4.8 (3.1)
Published
2021-09-20
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-79

Affected products

  • itservicejung / youforms-free-for-copecart

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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