Payment Plugins for Stripe WooCommerce <= 4.0.17 - Reflected DOM-Based Cross-Site Scripting via '#response' URL Fragment

Summary

The Payment Plugins for Stripe WooCommerce plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via '#response' URL Fragment in all versions up to, and including, 4.0.17 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the 'Generic Errors' setting is unchecked, causing getErrorMessage() to return the raw Stripe error string unchanged rather than substituting a mapped safe message.

Timeline

1. Oct 10, 2026, 6:40 AM UTCCVE published
2. Oct 11, 2026, 12:13 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 11, 2026, 12:23 PM UTCRecord last updated

Affected versions

• paymentplugins Payment Plugins for Stripe WooCommerce

  through 4.0.17

References 6