CVE-2026-1371

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

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.

We have discovered 8,566 live websites that are affected by CVE-2026-1371.

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Affected Software

Product  Tutor LMS
Category Learning Management System
Vulnerable Domains8,566 live websites (100% of Tutor LMS install base)
Vulnerable Versions
  • from 0 through 3.9.5
Vulnerable Versions Count119 versions ( 100% of all versions)


Common Weakness Enumeration

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor



Details

  • Published - Feb 3, 2026
  • Updated - Feb 3, 2026

Credits

  • Supakiad S. (finder)

Website Distribution by Country

Number of websites using CVE-2026-1371
United States2,486 websites


Germany671 websites
Cyprus472 websites
India415 websites
France392 websites
GB373 websites
Poland365 websites
Brazil313 websites
Italy239 websites
Spain206 websites

Website Distribution by TLD

Number of websites using CVE-2026-1371
.com4,079 websites
.org573 websites
.pl280 websites
.com.br261 websites
.de185 websites
.net177 websites
.it159 websites
.co.uk155 websites
.fr132 websites
.nl114 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-1371

Top websites that are affected by CVE-2026-1371. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*******.org United States**,***
**********.com United States**,***
***************.org United States**,***
*************.org United States**,***
**********.com GB**,***
********************.com United States***,***
*****.com France***,***
************.org United States***,***
*****.co Cyprus***,***
*****************.org United States***,***
See full domain list

FAQ

CVE-2026-1371 is Exposure of Sensitive Information to an Unauthorized Actor in Tutor LMS
A total of 8,566 websites have been identified as vulnerable to CVE-2026-1371, based on global website indexing conducted by WebTechSurvey.
The Tutor LMS is affected by the CVE-2026-1371 vulnerability.
Tutor LMS versions up to and including 3.9.5 are vulnerable to CVE-2026-1371.