CVE-2025-13673
Received Received - Intake
SQL Injection in Tutor LMS Plugin Allows Data Extraction

Publication date: 2026-02-28

Last updated on: 2026-02-28

Assigner: Wordfence

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.
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Meta Information
Published
2026-02-28
Last Modified
2026-02-28
Generated
2026-05-27
AI Q&A
2026-02-28
EPSS Evaluated
2026-05-25
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tutor_lms tutor to 3.9.6 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

The Tutor LMS plugin for WordPress has a vulnerability in the 'coupon_code' parameter that allows SQL Injection. This happens because the plugin does not properly escape or prepare the user-supplied input before including it in SQL queries.

As a result, an unauthenticated attacker can inject additional SQL commands into the query, potentially extracting sensitive information from the database.

Partial mitigations were introduced in versions 3.9.4 and 3.9.6, but the vulnerability exists in all versions up to and including 3.9.6.


How can this vulnerability impact me? :

This vulnerability can allow an attacker to extract sensitive information from your website's database without authentication.

Since the attacker can manipulate SQL queries, they might access confidential data such as user information, course details, or other protected content stored in the database.

This could lead to data breaches, loss of user trust, and potential damage to your organization's reputation.


How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:

I don't know


How can this vulnerability be detected on my network or system? Can you suggest some commands?

I don't know


What immediate steps should I take to mitigate this vulnerability?

The vulnerability in Tutor LMS versions up to and including 3.9.6 is partially mitigated in versions 3.9.4 and 3.9.6.

The immediate step to mitigate this vulnerability is to update the Tutor LMS plugin to version 3.9.7 or later, as this update addresses multiple aspects of the plugin and likely includes a fix for this SQL Injection vulnerability.


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