CVE-2026-9230 Missing authorization in Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
Authenticated contributors can modify arbitrary quizzes and reroute notification emails due to missing ownership verification in the QSM plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9230?
CVE-2026-9230 is a medium-severity missing authorization vulnerability in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker, published on 3 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-9230?
How do I fix CVE-2026-9230?
No fix has been published for CVE-2026-9230 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-9230 being exploited?
There is no known exploitation of CVE-2026-9230 in the wild and no public exploit code.
Sources
Also known as GHSA-j6gj-9v56-qvqx.