CVE-2026-1371

Tutor LMS <= 3.9.5 - Authenticated (Subscriber+) Information Disclosure in Coupon Details via 'tutor_coupon_details' AJAX Action

2026-02-02 18:49
Supakiad S. (m3ez) (m3ez)

Strategic Overview

Status
Patched in 3.9.6
Affected Plugin
Tutor LMS – eLearning and online course solution
Affected Version
<= 3.9.5
CVSS
5.3Medium
Weakness type
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE
CVE-2026-1371
View all Tutor LMS – eLearning and online course solution vulnerabilities

At a glance

CVE-2026-1371 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Tutor LMS WordPress plugin, affecting versions <= 3.9.5. 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 3.9.6; sites on affected versions should update now. Disclosed February 2026, reported by Supakiad S. (m3ez) (m3ez).

Vulnerability Overview

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.9.5. This is due to missing authorization checks in the `ajax_coupon_details()` function, which only validates nonces but does not verify user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve sensitive coupon information including coupon codes, discount amounts, usage statistics, and course/bundle applications.

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-200: Exposure of Sensitive Information to an Unauthorized Actor

Tutor LMS <= 3.9.5 carries this weakness at ajax_coupon_details(), and reaching it takes an account at Subscriber level or above. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Tutor LMS the fix is 3.9.6: builds <= 3.9.5 are affected, anything from 3.9.6 onward is not.

Remediation

Update to version 3.9.6, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Tutor LMS 3.9.6 closes this, and updating the plugin is the step that ends it.

  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-1371https://www.wordfence.com/threat-intel/vulnerabilities/id/7f5c5f64-a864-4ce1-9080-19f7c4418307https://nvd.nist.gov/vuln/detail/CVE-2026-1371

Related records

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