CVE-2025-9637 Missing authorization in Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker

Medium 6.5 Published 6 Jan 2026 Updated 8 Apr 2026

Unauthenticated attackers can view private quiz details and upload files due to missing authorization checks in the QSM WordPress plugin.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-9637?

CVE-2025-9637 is a medium-severity missing authorization vulnerability in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker, published on 6 Jan 2026. An attacker can exploit it over the internet without logging in, 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 unauthorized access and modification of data due to a missing capability and status checks on multiple functions in all versions up to, and including, 10.3.1. This makes it possible for unauthenticated attackers to view the details of unpublished, private, or password-protected quizzes, as well as submit file responses to questions from those quizzes, which allow file upload.

Weakness: CWE-862

Which versions are affected by CVE-2025-9637?

It affects 1 product.

Products include Expresstech Quiz and Survey Master.

How do I fix CVE-2025-9637?

No fix has been published for CVE-2025-9637 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-2025-9637 being exploited?

There is no known exploitation of CVE-2025-9637 in the wild and no public exploit code.

Sources

Also known as GHSA-3w7h-hjcr-7c39.