CVE-2026-42730
SQL Injection in MasterStudy LMS
Publication date: 2026-05-27
Last updated on: 2026-05-27
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| stylemix | masterstudy_lms | to 3.7.29 (inc) |
| stylemix | masterstudy_lms | From 3.0.0 (inc) to 3.7.29 (inc) |
Helpful Resources
Exploitability
| 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?
CVE-2026-42730 is a SQL Injection vulnerability found in the WordPress MasterStudy LMS Plugin versions 3.7.29 and below. This flaw allows attackers to inject malicious SQL commands into the website's database queries without proper neutralization of special elements. Specifically, it is a Blind SQL Injection, meaning attackers can extract information from the database even though the results are not directly visible.
The vulnerability is classified under OWASP Top 10 A3: Injection and has a high severity score of 8.5, indicating a significant risk of exploitation.
How can this vulnerability impact me? :
This vulnerability can allow attackers to interact directly with your website's database, potentially leading to the theft of sensitive information. Because it is actively targeted in mass-exploit campaigns, any affected website is at significant risk regardless of its size or popularity.
The impact includes unauthorized data access and possible data leakage, which can compromise the confidentiality and integrity of your data.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
The vulnerability is a Blind SQL Injection in the MasterStudy LMS WordPress plugin versions 3.7.29 and below. Detection typically involves monitoring for unusual or suspicious SQL queries or injection attempts targeting the plugin's endpoints.
While specific commands are not provided in the resources, common detection methods include using web application firewalls (WAF) with rules to detect SQL injection patterns, or employing tools like sqlmap to test for SQL injection vulnerabilities against the affected plugin.
Additionally, monitoring web server logs for suspicious requests containing SQL syntax or unusual parameter values can help identify exploitation attempts.
What immediate steps should I take to mitigate this vulnerability?
The primary immediate step to mitigate this vulnerability is to update the MasterStudy LMS WordPress plugin to version 3.7.30 or later, where the issue is patched.
If updating is not immediately possible, it is recommended to apply the mitigation rule provided by Patchstack to block SQL injection attacks targeting this vulnerability.
Seeking assistance from your hosting provider or a web developer to implement temporary protections or workarounds until the update can be applied is also advised.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The SQL Injection vulnerability in the MasterStudy LMS plugin allows attackers to interact directly with the website's database, potentially stealing sensitive information.
Such unauthorized access and data theft can lead to violations of data protection regulations like GDPR and HIPAA, which require the protection of personal and sensitive data.
Therefore, exploitation of this vulnerability could result in non-compliance with these common standards and regulations due to compromised data confidentiality.