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Vulnerability record · CVE-2026-4290 · published 29 May 2026

CVE-2026-4290: Missing authorization vulnerability

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 possible for unauthenticated attackers to delete arbitrary user accounts, including those of administrators.

9.1 CVSS 3.1 Critical EPSS 0.46% · top 62.3% CWE-862 · Missing authorization Deferred
9.1CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
21 Jul 2026Last modified by NVD

Description

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 possible for unauthenticated attackers to delete arbitrary user accounts, including those of administrators.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References

LinkTags
https://wptravel.io/wp-travel-pro/
https://www.wordfence.com/threat-intel/vulnerabilities/id/885dd550-4c80-4e36-8dae-cb47c1500ea5?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-4290), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.