Quiz and Survey Master (QSM) <= 11.2.0 - Authenticated (Custom+) SQL Injection via 'pages' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The Quiz Master Next plugin for WordPress is vulnerable to SQL Injection via stored quiz page data in versions up to, and including, 11.2.0. This is due to insufficient escaping on the user-supplied 'pages' parameter persisted by the qsm_ajax_save_pages() AJAX handler (sanitize_text_field only) and lack of sufficient preparation on the existing SQL query built in qsm_options_questions_tab_content() at line 143, where the stored page IDs are interpolated into an IN() clause via implode() with no $wpdb->prepare() and no integer casting. This makes it possible for authenticated attackers, with Author-level access and above (who can own a quiz they are entitled to edit), to plant a SQL payload that is executed second-order whenever any user (including an administrator) views the quiz's Questions tab, allowing them to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ExpressTech | Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker | up to 11.2.0 | — | No fix listed | CNA |
- Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker VendorExpressTech Affected up to 11.2.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-13767
- 2026-10-03 Alias added: GHSA-4895-w473-xhfc
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/63fec549-09e0-4d4e-ae41-128ce0669501?source=cve
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.0/php/admin/options-page-questions-tab.php#L143
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.0/php/admin/options-page-questions-tab.php#L1085
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.0/php/classes/class-qmn-plugin-helper.php#L601
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3608310%40quiz-master-next&new=3608310%40quiz-master-next
More ExpressTech vulnerabilities
- TI-2020-18392 An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. CVSS 3.1CRITICAL 9.9
- TI-2024-05207 Quiz And Survey Master < 9.0.2 - Contributor+ SQLi CVSS 3.1HIGH 8.8
- TI-2024-05583 Quiz and Survey Master < 9.0.5 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.5
- TI-2024-09897 Quiz and Survey Master (QSM) < 9.2.1 - Author+ Stored XSS CVSS 3.1MEDIUM 6.1
- TI-2024-05932 Quiz and Survey Master (QSM) < 9.1.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.9
- TI-2024-04590 Quiz And Survey Master < 9.0.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.5
Sources
- CVE-2026-13767 · CVE Program
- CVE-2026-13767 · NVD
- FIRST EPSS
- GHSA-4895-w473-xhfc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences