LTL Freight Quotes – R+L Carriers Edition <= 3.3.13 - Missing Authorization to Unauthenticated Settings Update
Strategic Overview
- Status
- Patched in 3.3.14
- Affected Plugin
- LTL Freight Quotes – R+L Carriers Edition
- Affected Version
<= 3.3.13- CVSS
- 5.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2026-3646
At a glance
CVE-2026-3646 is a medium-severity Missing Authorization vulnerability in the LTL Freight Quotes WordPress plugin, affecting versions <= 3.3.13. 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 3.3.14; sites on affected versions should update now. Disclosed April 2026, reported by Poli.
Vulnerability Overview
The LTL Freight Quotes – R+L Carriers Edition plugin for WordPress is vulnerable to Missing Authorization via the plugin's webhook handler in all versions up to, and including, 3.3.13. This is due to missing authentication, authorization, and nonce verification on a standalone PHP file that directly processes GET parameters and updates WordPress options. This makes it possible for unauthenticated attackers to modify the plugin's subscription plan settings, effectively downgrading the store from a paid plan to the Trial Plan, changing the store type, and manipulating subscription expiration dates, potentially disabling premium features such as Dropship and Hazardous Material handling.
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-862: Missing Authorization
Reaching this weakness in LTL Freight Quotes <= 3.3.13 takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For LTL Freight Quotes the fix is 3.3.14: builds <= 3.3.13 are affected, anything from 3.3.14 onward is not.
Remediation
Update to version 3.3.14, or a newer patched version
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: LTL Freight Quotes 3.3.14 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in LTL Freight Quotes – R+L Carriers Edition
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C