CVE-2026-15963Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) SQL Injection via 'randon_category' Quiz Option
Updated under an hour ago ()
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It affects expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-89
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker expresstech:quiz_and_survey_master_qsm_quiz_maker_and_survey_maker (from the name) | through 11.2.1 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b1de31ae-4095-4863-9971-9de45c36f5a0?source=cve
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/renderer/frontend/class-qsm-render-pagination.php#L392
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/renderer/frontend/class-qsm-render-pagination.php#L390
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/php/classes/class-qsm-fields.php#L77
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.1/php/classes/class-qsm-install.php#L271
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3612474%40quiz-master-next&new=3612474%40quiz-master-next
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.