CVE-2026-13767

Quiz and Survey Master (QSM) <= 11.2.0 - Authenticated (Custom+) SQL Injection via 'pages' Parameter

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.

We have discovered 686 live websites that are affected by CVE-2026-13767.

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Affected Software

Product  Quiz Master Next
Category Wordpress Plugins
Vulnerable Domains686 live websites (100% of Quiz Master Next install base)
Vulnerable Versions
  • from 0 through 11.2
Vulnerable Versions Count58 versions ( 100% of all versions)


Common Weakness Enumeration

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')



Details

  • Published - Jul 16, 2026
  • Updated - Jul 16, 2026

Credits

  • PRISM (finder)

Website Distribution by Country

Number of websites using CVE-2026-13767
United States201 websites


Germany77 websites
Russia41 websites
France38 websites
GB31 websites
Netherlands25 websites
Spain20 websites
Japan18 websites
Poland17 websites
Switzerland14 websites

Website Distribution by TLD

Number of websites using CVE-2026-13767
.com263 websites
.org43 websites
.de39 websites
.ru32 websites
.nl22 websites
.net16 websites
.co.uk15 websites
.it14 websites
.pl14 websites
.com.br13 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-13767

Top websites that are affected by CVE-2026-13767. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*****.org United States**,***
******************.com United States***,***
*************.com United States***,***
************.de Germany***,***
****************.com United States***,***
************.org United States***,***
****.*******************.com United States***,***
*********.com United States***,***
**********.ru Russia***,***
*********************.net United States***,***
See full domain list

FAQ

CVE-2026-13767 is Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in Quiz Master Next
A total of 686 websites have been identified as vulnerable to CVE-2026-13767, based on global website indexing conducted by WebTechSurvey.
The Quiz Master Next is affected by the CVE-2026-13767 vulnerability.
Quiz Master Next versions up to and including 11.2 are vulnerable to CVE-2026-13767.