CVE-2026-116509
Quiz and Survey Master (QSM) <= 11.2.9 - Authenticated (Contributor+) SQL Injection via 'qpages' Parameter
CVE-2026-116509 is a medium vulnerability (CVSS 6.5) in Expresstech Quiz And Survey Master (qsm) – Quiz Maker & Survey Maker, published November 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. No source names a fixed version.
- Severity
- 6.5 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.44%EPSS, 38th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via the 'qpages' parameter in all versions up to, and including, 11.2.9 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 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. The injected payload survives storage and a published-status check in display_shortcode() because a non-numeric ID causes the isPublished lookup to return an empty string, after which the payload is imploded directly into a WHERE question_id IN() clause via plain string interpolation with no wpdb->prepare() or esc_sql() call.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
What each source reports
CVE List Score used 6.5
Quiz and Survey Master (QSM) <= 11.2.9 - Authenticated (Contributor+) SQL Injection via 'qpages' Parameter
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via the 'qpages' parameter in all versions up to, and including, 11.2.9 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 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. The injected payload survives storage and a published-status check in display_shortcode() because a non-numeric ID causes the isPublished lookup to return an empty string, after which the payload is imploded directly into a WHERE question_id IN() clause via plain string interpolation with no wpdb->prepare() or esc_sql() call.
- Record
CVE-2026-116509- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-89
- Updated
- 2026-11-13
EUVDEUVD-2026-124989 6.5
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via the 'qpages' parameter in all versions up to, and including, 11.2.9 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 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. The injected payload survives storage and a published-status check in display_shortcode() because a non-numeric ID causes the isPublished lookup to return an empty string, after which the payload is imploded directly into a WHERE question_id IN() clause via plain string interpolation with no wpdb->prepare() or esc_sql() call.
- Record
EUVD-2026-124989- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-13
GitHub AdvisoriesGHSA-ffm2-6xvr-qv3m 6.5
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable...
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via the 'qpages' parameter in all versions up to, and including, 11.2.9 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 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. The injected payload survives storage and a published-status check in display_shortcode() because a non-numeric ID causes the isPublished lookup to return an empty string, after which the payload is imploded directly into a WHERE question_id IN() clause via plain string interpolation with no wpdb->prepare() or esc_sql() call.
- Record
GHSA-ffm2-6xvr-qv3m- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-89
- Updated
- 2026-11-13
NVD 6.5
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via the 'qpages' parameter in all versions up to, and including, 11.2.9 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 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. The injected payload survives storage and a published-status check in display_shortcode() because a non-numeric ID causes the isPublished lookup to return an empty string, after which the payload is imploded directly into a WHERE question_id IN() clause via plain string interpolation with no wpdb->prepare() or esc_sql() call.
- Record
CVE-2026-116509- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-89
- Updated
- 2026-11-13
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD | |
| aliases, references | GitHub Advisories, NVD | |
| aliases, published | EUVD | |
| first indexed | CVE List |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
wordfence.com/threat-intel/vulnerabilities/id/cbca9065-6f0a-4fb3-ba54-ebd8a7c44af1?source=cve
plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.9/php/classes/class-qmn-quiz-manager.php
plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.9/php/admin/options-page-questions-tab.php
plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.9/php/admin/functions.php
plugins.trac.wordpress.org/changeset?reponame=&old=3779826%40quiz-master-next&new=3779826%40quiz-master-next
nvd.nist.gov/vuln/detail/CVE-2026-116509
github.com/advisories/GHSA-ffm2-6xvr-qv3m