What is CVE-2025-13842?

CVE-2025-13842 is a medium-severity vulnerability in Mtekk Breadcrumb Navxt, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-02-19.

How severe is CVE-2025-13842?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Mtekk Breadcrumb Navxt

CVE-2025-13842

The Breadcrumb NavXT plugin for WordPress is vulnerable to authorization bypass through user-controlled key in versions up to and including 7.5.0. This is due to the Gutenberg block renderer trusting the $_REQUEST['post_id'] parameter without verification in the includes/blocks/build/breadcrumb-trail/render.php file. This makes it possible for unauthenticated attackers to enumerate and view breadcrumb trails for draft or private posts by manipulating the post_id parameter, revealing post titles and hierarchy that should remain hidden.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (24.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Mtekk Breadcrumb Navxt — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2025-13842?: CVE-2025-13842 is a medium-severity vulnerability in Mtekk Breadcrumb Navxt, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-02-19.
How severe is CVE-2025-13842?: Medium severity. CVSS v3 base score is 5.3 out of 10.