Auth bypass in Flightbycanto Canto
CVE-2026-6441
The Canto plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 3.1.1. This is due to the absence of any capability check or nonce verification in the updateOptions() function, which is exposed via two…
Vulnerability class: Broken Access Control
EPSS: 0.000 (2.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Flightbycanto Canto — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/c1a0200f-9861-4eca-adbf-d458e…
- plugins.trac.wordpress.org/browser/canto/trunk/includes/class-canto.php
- plugins.trac.wordpress.org/browser/canto/tags/3.1.1/includes/class-canto.php
- plugins.trac.wordpress.org/browser/canto/trunk/includes/class-canto.php
- plugins.trac.wordpress.org/browser/canto/tags/3.1.1/includes/class-canto.php
- plugins.trac.wordpress.org/browser/canto/trunk/includes/class-canto-settings.php
- plugins.trac.wordpress.org/browser/canto/tags/3.1.1/includes/class-canto-settin…
Frequently asked questions
- What is CVE-2026-6441?
- CVE-2026-6441 is a medium-severity vulnerability in Flightbycanto Canto, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-04-17.
- How severe is CVE-2026-6441?
- Medium severity. CVSS v3 base score is 4.3 out of 10.