CVE-2026-9230 Details
Description
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 11.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify quizzes they do not own, overwrite quiz results pages, and reroute quiz-result notification emails to attacker-controlled addresses. An attacker first calls the /quiz/structure endpoint with an arbitrary victim quiz ID to obtain a valid nonce bound to that quiz ID and their own user ID, then presents that nonce to the /quizzes/{id}/emails save endpoint, which accepts it without verifying quiz ownership.
A vulnerability exists in the Quiz and Survey Master (QSM) WordPress plugin, specifically in versions up to and including 11.1.4. The issue stems from an authorization bypass, where the plugin fails to properly verify if a user is authorized to perform certain actions. This flaw enables authenticated attackers with contributor-level access or higher to manipulate quizzes they do not own, overwrite quiz results pages, and redirect quiz notification emails to addresses controlled by the attacker. The exploitation involves calling the '/quiz/structure' endpoint with a victim's quiz ID to obtain a nonce, which is then used to access the '/quizzes/{id}/emails' save endpoint without ownership verification.
Users are advised to update the Quiz and Survey Master plugin to version 11.1.5 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 3, 2026CISA-ADP
Assessed Jul 6, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ExpressTech Quiz and Survey Master | All versions |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 6, 2026 | CVE Modified | CISA-ADP |
| Jul 3, 2026 | New CVE Received | [email protected] |