CVE-2026-116509

Quiz and Survey Master (QSM) <= 11.2.9 - Authenticated (Contributor+) SQL Injection via 'qpages' Parameter

Medium 6.5

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.

Key facts

Published: 13 Nov 2026
Last changed: 13 Nov 2026
Assigned by: Wordfence
EPSS: 0.438% likely to be exploited in the next 30 days, higher than 38.622% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: none; Automatable: no; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

6.5CVSS 3.1, Mediumfrom the CNA (Wordfence)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
expresstech	Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker	Default status: unaffected 0 up to and including 11.2.9 (affected)

Timeline

12 Nov 2026 Disclosed
13 Nov 2026 Published

Weakness

CWE-89

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