Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
Contributor authentication gives PR:L; network-reachable low-complexity SQLi with no interaction; scope change and C:H reflect full-database read beyond the plugin, with limited integrity/availability impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Contributor SQL Injection in Quiz And Survey Master <= 11.2.0 versions.
AnalysisAI
Authenticated SQL injection in the Quiz And Survey Master WordPress plugin (versions 11.2.0 and earlier) lets a low-privileged Contributor-level user inject arbitrary SQL through the plugin's quiz/survey handling, exposing the entire WordPress database. The CVSS 3.1 base score is 8.5 with a scope change, reflecting that a single low-trust account can read data across the whole database rather than just plugin-scoped tables. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.
Technical ContextAI
The affected component is Quiz And Survey Master (quiz-master-next), a WordPress plugin by ExpressTech Systems used to build quizzes and surveys. The root cause is CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), meaning user-controllable input reaches a database query without adequate parameterization or escaping - a classic failure to use WordPress's $wpdb->prepare(). Because the exploitation path is reachable by a Contributor role, the plugin exposes a query-building code path to users who should only be able to author draft content, and the scope-changed CVSS vector indicates the injection reaches the shared WordPress database beyond the plugin's own security authority.
RemediationAI
Upgrade Quiz And Survey Master to the first release above 11.2.0 as published by the vendor; the input data does not include an exact fixed version, so confirm the patched release number against the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/quiz-master-next/vulnerability/wordpress-quiz-and-survey-master-plugin-11-2-0-sql-injection-vulnerability) and the plugin's changelog on the WordPress.org repository before deploying. Until patched, restrict who holds the Contributor role and audit existing Contributor accounts, since the attack requires that privilege level - removing or downgrading untrusted Contributor accounts directly eliminates the attack surface at the cost of limiting community authoring. As a compensating control, place a WAF (e.g. Patchstack or equivalent) in front of the site with SQLi rules covering the plugin's request parameters, and monitor database query logs for anomalous statements originating from Contributor sessions; WAF virtual patching may cause false positives on legitimate quiz submissions and should be tested.
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Same weakness CWE-89 – SQL Injection
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-48219
GHSA-vhfh-p7xf-hf2j