CVE-2026-15022
Tutor LMS <= 4.0.0 - Authenticated (Subscriber+) SQL Injection via Stored Quiz Answer Array
Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to generic SQL Injection via Stored Quiz Answer Array in all versions up to, and including, 4.0.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with custom-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The payload is stored at quiz-attempt time via the wp_ajax_tutor_quiz_abandon handler, but the injected SQL executes only when a privileged user or Tutor REST API key holder requests the /wp-json/tutor/v1/quiz-attempt-details/{id} endpoint, making this a second-order (stored) injection chain.
INFO
Published Date :
July 16, 2026, 9:16 a.m.
Last Modified :
July 16, 2026, 9:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-15022
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Tutor LMS plugin to the latest version.
- Verify that the SQL injection vulnerability is no longer present.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-15022.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-15022 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-15022
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-15022 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-15022 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jul. 16, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'themeum', 'product': 'Tutor LMS – eLearning and online course solution', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '4.0.0'}], 'defaultStatus': 'unaffected'}] Added Description The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to generic SQL Injection via Stored Quiz Answer Array in all versions up to, and including, 4.0.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with custom-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The payload is stored at quiz-attempt time via the wp_ajax_tutor_quiz_abandon handler, but the injected SQL executes only when a privileged user or Tutor REST API key holder requests the /wp-json/tutor/v1/quiz-attempt-details/{id} endpoint, making this a second-order (stored) injection chain. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-89 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/classes/Quiz.php#L442 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/classes/Quiz.php#L626 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/helpers/QueryHelper.php#L951 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/restapi/REST_Quiz.php#L286 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/restapi/REST_Quiz.php#L384 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.13/restapi/REST_Quiz.php#L415 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Quiz.php#L442 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Quiz.php#L626 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/helpers/QueryHelper.php#L951 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/restapi/REST_Quiz.php#L286 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/restapi/REST_Quiz.php#L384 Added Reference https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/restapi/REST_Quiz.php#L415 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/8cd603aa-c4d4-488c-b134-6983240c3a18?source=cve