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CVE-2026-15963

6.5 · MEDIUM

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.…

Published Aug 16, 2026CWE-89EPSS 0.45%

Overview

CVE-2026-15963 is a medium-severity vulnerability. It was published on August 16, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/php/classes/class-qsm-fields.php#L77Refplugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/php/classes/class-qsm-install.php#L271Refplugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/renderer/frontend/class-qsm-render-pagination.php#L390Refplugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/renderer/frontend/class-qsm-render-pagination.php#L392Refplugins.trac.wordpress.org/changeset?reponame=&old=3612474%40quiz-master-next&new=3612474%40quiz-master-nextRefwww.wordfence.com/threat-intel/vulnerabilities/id/b1de31ae-4095-4863-9971-9de45c36f5a0?source=cve

How CyberStrike helps

Frequently asked questions

What is CVE-2026-15963?

CVE-2026-15963 is a medium-severity vulnerability. It was published on August 16, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-15963?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-15963?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-15963?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-15963 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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