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CVE-2026-13767— Quiz and Survey Master (QSM) <= 11.2.0 - Authenticated (Custom+) SQL Injection via 'pages' Parameter

Quick assessment

Affected
expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

expresstech quiz and survey master是expresstech公司的一款在线测验软件。 WordPress Quiz and Survey Master 11.2.0及之前版本存在SQL注入漏洞，该漏洞源于对用户提供的'pages'参数转义不足以及SQL查询准备不充分，可能导致经过身份验证的攻击者利用SQL注入提取敏感信息。

CVSS 6.5 · Medium EPSS 0.41% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker ≤ 11.2.0 affected
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I. Basic Information for CVE-2026-13767

Vulnerability Information
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Vulnerability Title
Quiz and Survey Master (QSM) <= 11.2.0 - Authenticated (Custom+) SQL Injection via 'pages' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Quiz and Survey Master SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
expresstech quiz and survey master是expresstech公司的一款在线测验软件。 WordPress Quiz and Survey Master 11.2.0及之前版本存在SQL注入漏洞，该漏洞源于对用户提供的'pages'参数转义不足以及SQL查询准备不充分，可能导致经过身份验证的攻击者利用SQL注入提取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker 0 ~ 11.2.0 -

II. Public POCs for CVE-2026-13767

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III. Intelligence Information for CVE-2026-13767

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Vendor Advisories for CVE-2026-13767 (1)

IV. Related Vulnerabilities

Same product: Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
Same vendor: expresstech
Same weakness: CWE-89

V. Comments for CVE-2026-13767

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