An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control. This occurred via qsm_remove_file_fd_question, which allowed unauthenticated deletions (even though it was only intended for a person to delete their own quiz-answer files).
CVE-2020-35951 is a high severity with CVSS 8.2 Authorization Bypass issue affecting the Plugin Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker. It affects Versions before 7.0.1 and is fixed in 7.0.1.
CVE-2020-35951 is tracked for the Plugin Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker as high severity with CVSS 8.2. The affected range is Versions before 7.0.1. Update Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker to 7.0.1 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
quiz-master-next
View on wordpress.org
|
| CVE | CVE-2020-35951 |
| Patched Versions |
7.0.1
|
| Affected Versions |
Versions before 7.0.1
|
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 <= 10.2.5 - Unauthenticated PHP Object Injection
Quiz And Survey Master <= 8.0.8 - Unauthenticated Arbitrary Media Deletion
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