SQL Injection Vulnerability in Quiz and Survey Master Plugin for WordPress
CVE-2026-2412

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Quiz And Survey Master (qsm) – Easy Quiz And Survey Maker
Vendor
CVE Published:
23 March 2026

What is CVE-2026-2412?

The Quiz and Survey Master (QSM) plugin for WordPress contains a vulnerability that allows SQL Injection through the 'merged_question' parameter in all versions up to 10.3.5. This security flaw arises due to insufficient sanitization of user-supplied inputs, enabling authenticated users with Contributor-level access and higher to inject malicious SQL queries. These queries can manipulate existing SQL commands and potentially extract sensitive information from the database due to the lack of proper input handling in the SQL IN() clause.

Affected Version(s)

Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker 0 <= 10.3.5

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/quiz-master-ne...
https://plugins.trac.wordpress.org/browser/quiz-master-ne...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanh Hao
.