CVE-2026-2412: Quiz and Survey Master (QSM) <= 10.3.5 - Authenticated (Contributor+) SQL Injection via 'merged_question' Parameter
expresstech · Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
Affected: expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 27% of scored CVEs
DescriptionCVE.org
The Quiz and Survey Master (QSM) plugin for WordPress is vulnerable to SQL Injection via the 'merged_question' parameter in all versions up to, and including, 10.3.5. This is due to insufficient sanitization of user-supplied input before being used in a SQL query. The sanitize_text_field() function applied to the merged_question parameter does not prevent SQL metacharacters like ), OR, AND, and # from being included in the value, which is then directly concatenated into a SQL IN() clause without using $wpdb->prepare() or casting values to integers. This makes it possible for authenticated attackers, with Contributor-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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- expresstech · Quiz and Survey Master (QSM) – Easy Quiz and Survey Makerup to and including 10.3.5
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- SQL Injection
- Vendor
- expresstech
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-2412 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-89cwe.mitre.org
- wordfence.com/threat-intel/vulnerabilities/id/b32bf1cb-3722-41fcwordfence.com
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/plugins.trac.wordpress.org
- plugins.trac.wordpress.org/changeset/3486710/quiz-master-next/trplugins.trac.wordpress.org
- plugins.trac.wordpress.org/changeset/3486710/quiz-master-next/trplugins.trac.wordpress.org