CVE-2026-15963: medium-severity vulnerability in expresstech Quiz and Survey Master (QSM)…
Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) SQL Injection via 'randon_category' Quiz Option
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.5%
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via 'randon_category' 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Related CVEs — expresstech Quiz and Survey Master (QSM)…
In the same product, most dangerous first.
CVE-2026-11780MEDIUMQuiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'question_title' ParameterEPSS 0.4%CVE-2026-13767MEDIUMQuiz and Survey Master (QSM) <= 11.2.0 - Authenticated (Custom+) SQL Injection via 'pages' ParameterEPSS 0.4%CVE-2026-96558HIGHQuiz and Survey Master (QSM) <= 11.2.6 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'qsm_hidden_questions' ParameterEPSS 0.2%
References
https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/php/classes/class-qsm-fields.php#L77https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/php/classes/class-qsm-install.php#L271https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/renderer/frontend/class-qsm-render-pagination.php#L390https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/renderer/frontend/class-qsm-render-pagination.php#L392https://plugins.trac.wordpress.org/changeset?reponame=&old=3612474%40quiz-master-next&new=3612474%40quiz-master-nexthttps://www.wordfence.com/threat-intel/vulnerabilities/id/b1de31ae-4095-4863-9971-9de45c36f5a0?source=cve