Risk Letters

Exploited vulnerability

CVE-2026-4290

TLP:CLEAR

Missing Authorization

The WP Travel Pro plugin for WordPress is vulnerable to arbitrary user deletion via the /wp-json/wp-travel/v1/travel-guide/{user_id} REST API endpoint in all versions up to, and including, 10.6.0. This is due to the check_permission() callback unconditionally returning true and the Database::delete() method passing the user ID directly to wp_delete_user() without any role validation. This makes it

Facts

  • Vendor: WPTravel
  • Product: WP Travel Pro
  • CVSS: 9.1
  • EPSS (probability of exploitation within 30 days): 0.3 %
  • First known exploitation: 13 October 2026
  • First seen by Risk Letters: 30 May 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD