The Quiz And Survey Master plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 10.2.5 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
CVE-2025-49401 is a high severity with CVSS 8.1 Vulnerability issue affecting the Plugin Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker. It affects Versions up to 10.2.5 and is fixed in 10.2.6.
Use the related hub and response guides to connect this CVE-2025-49401 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2025-49401 is tracked for the Plugin Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker as high severity with CVSS 8.1. The affected range is Versions up to 10.2.5. Update Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker to 10.2.6 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 10.2.5.
Confirm Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker is updated to 10.2.6 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
quiz-master-next
View on wordpress.org
|
| CVE | CVE-2025-49401 |
| Patched Versions |
10.2.6
|
| Affected Versions |
Versions up to 10.2.5
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress <= 9.0.1 - Authenticated (Contributor+) SQL Injection
Quiz and Survey Master <= 8.1.4 - Unauthenticated SQL Injection
Quiz and Survey Master <= 7.0.0 - Arbitrary File Upload
Quiz And Survey Master <= 7.3.6 - Cross-Site Request Forgery
Quiz And Survey Master <= 7.1.11 - Authenticated SQL injection via shortcode
Quiz And Survey Master <= 4.7.8 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Quiz and Survey Master <= 7.0.0 - Unauthenticated Arbitrary File Deletion
Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker <= 11.1.2 - Unauthenticated Stored Cross-Site Scripting
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