Vulnerability · Published Feb 28, 2026 · Assigned by Wordfence
CVE-2025-13673Tutor LMS <= 3.9.6 - Unauthenticated SQL Injection via coupon_code
High 7.5
In plain English
A high-severity SQL injection in Tutor LMS – eLearning and online course solution from themeum. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to SQL Injection via the 'coupon_code' parameter in all versions up to, and including, 3.9.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. NOTE: This vulnerability was partially mitigated in versions 3.9.4 and 3.9.6.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| themeum | Tutor LMS – eLearning and online course solution | 0 – through 3.9.6 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N