Breadcrumb NavXT <= 7.5.0 - Missing Authorization to Sensitive Information Exposure
Strategic Overview
- Status
- Patched in 7.5.1
- Affected Plugin
- Breadcrumb NavXT
- Affected Version
<= 7.5.0- CVSS
- 5.3Medium
- Weakness type
- CWE-639 · Authorization Bypass Through User-Controlled Key
- CVE
CVE-2025-13842
At a glance
CVE-2025-13842 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the Breadcrumb NavXT WordPress plugin, affecting versions <= 7.5.0. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 7.5.1; sites on affected versions should update now. Disclosed February 2026, reported by NosleeP++.
Vulnerability Overview
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.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.
CWE-639: Authorization Bypass Through User-Controlled Key
Breadcrumb NavXT <= 7.5.0 carries this weakness at post_id, and reaching it takes a caller who can reach the endpoint. Authorization bypass through a user-controlled key, often called insecure direct object reference, means the application looks up a record by an identifier from the request without checking that the caller owns it.
Changing a number in the request is enough to read or modify other users' records, which on commerce and membership sites means customer data. For Breadcrumb NavXT the fix is 7.5.1: builds <= 7.5.0 are affected, anything from 7.5.1 onward is not.
Remediation
Update to version 7.5.1, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Breadcrumb NavXT 7.5.1 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Breadcrumb NavXT
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C