CVE-2025-6790

Quiz and Survey Master (QSM) <= 10.2.2 - Cross-Site Request Forgery to Template Creation

2025-07-24 00:00
Dmitrii Ignatyev

Strategic Overview

Status
Patched in 10.2.3
Affected Plugin
Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
Affected Version
<= 10.2.2
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2025-6790
View all Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker vulnerabilities

At a glance

CVE-2025-6790 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Quiz and Survey Master (QSM) WordPress plugin, affecting versions <= 10.2.2. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 10.2.3; sites on affected versions should update now. Disclosed July 2025, reported by Dmitrii Ignatyev.

Vulnerability Overview

The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 10.2.2. This is due to missing or incorrect nonce validation on the qsm_insert_quiz_template_callback() function. This makes it possible for unauthenticated attackers to create templates via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-352: Cross-Site Request Forgery (CSRF)

Quiz and Survey Master (QSM) <= 10.2.2 carries this weakness at qsm_insert_quiz_template_callback(), and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Quiz and Survey Master (QSM) the fix is 10.2.3: builds <= 10.2.2 are affected, anything from 10.2.3 onward is not.

Remediation

Update to version 10.2.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Quiz and Survey Master (QSM): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Quiz and Survey Master (QSM) 10.2.3 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-6790https://www.wordfence.com/threat-intel/vulnerabilities/id/42b77d66-8519-4e7e-b253-fefac581df4bhttps://nvd.nist.gov/vuln/detail/CVE-2025-6790

Related records

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