CVE-2026-15963: Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) SQL Injection via 'randon_category' Quiz Option
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via 'randoncategory' Quiz Option in all versions up to, and including, 11.2.1 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-15963?
CVE-2026-15963 has a medium severity rating of 6.5.
How do I fix CVE-2026-15963?
To fix CVE-2026-15963, update the Quiz and Survey Master plugin to a version later than 11.2.1.
What systems are affected by CVE-2026-15963?
CVE-2026-15963 affects all versions of the Quiz and Survey Master plugin for WordPress up to and including 11.2.1.
What type of vulnerability is CVE-2026-15963?
CVE-2026-15963 is classified as an SQL Injection vulnerability.
What is the impact of CVE-2026-15963?
The impact of CVE-2026-15963 includes potential unauthorized access to sensitive data due to insufficient escaping of user inputs.