CVE-2026-7648

LearnPress – WordPress LMS Plugin for Create and Sell Online Courses <= 4.3.5 - Authenticated (Subscriber+) Payment Bypass to Free Course Enrollment via 'quantity' Parameter

2026-05-13 15:21
winrace

Strategic Overview

Status
Patched in 4.3.6
Affected Plugin
LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
Affected Version
<= 4.3.5
CVSS
4.3Medium
Weakness type
CWE-639 · Authorization Bypass Through User-Controlled Key
CVE
CVE-2026-7648
View all LearnPress – WordPress LMS Plugin for Create and Sell Online Courses vulnerabilities

At a glance

CVE-2026-7648 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the LearnPress WordPress plugin, affecting versions <= 4.3.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 4.3.6; sites on affected versions should update now. Disclosed May 2026, reported by winrace.

Vulnerability Overview

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to payment bypass through user-controlled key in all versions up to, and including, 4.3.5. This is due to improper handling of user-supplied request parameters in the REST API endpoint, which passes the unsanitized parameter array to the add_to_cart() function where array_merge() allows attacker-controlled values to overwrite hardcoded defaults. This makes it possible for authenticated attackers, with subscriber-level access and above, to enroll in any paid course entirely free of charge by supplying a quantity value of zero, which causes the order total to calculate as $0 and bypasses all payment gateway requirements.

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 interaction from a victim user.

CWE-639: Authorization Bypass Through User-Controlled Key

LearnPress <= 4.3.5 carries this weakness at add_to_cart(), and reaching it takes an account at Subscriber level or above. 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 LearnPress the fix is 4.3.6: builds <= 4.3.5 are affected, anything from 4.3.6 onward is not.

Remediation

Update to version 4.3.6, 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: LearnPress 4.3.6 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-7648https://www.wordfence.com/threat-intel/vulnerabilities/id/564ec4a6-20d3-4b46-8637-fc1de586e19ahttps://nvd.nist.gov/vuln/detail/CVE-2026-7648

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C