What is CVE-2020-35951?

CVE-2020-35951 is a critical vulnerability found in the Quiz and Survey Master plugin for WordPress, allowing users to delete arbitrary files and take control of a site.

How severe is CVE-2020-35951?

CVE-2020-35951 has a severity rating of 9.9 out of 10, making it a critical vulnerability.

How does CVE-2020-35951 affect WordPress?

CVE-2020-35951 affects the Quiz and Survey Master plugin before version 7.0.1, allowing attackers to delete important files and take a WordPress site offline.

How can I fix CVE-2020-35951?

To fix CVE-2020-35951, it is recommended to update the Quiz and Survey Master plugin to version 7.0.1 or later.

Where can I find more information about CVE-2020-35951?

More information about CVE-2020-35951 can be found at the following references: [Wordfence blog](https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/) and [WPScan vulnerability report](https://wpscan.com/vulnerability/10348).

Vulnerability/
CVE-2020-35951

critical

9.9

CWE

306

1/1/2021

21/7/2021

CVE-2020-35951

First published: Fri Jan 01 2021(Updated: )

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).

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Expresstech Quiz And Survey Master	<7.0.1

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Frequently Asked Questions

What is CVE-2020-35951?
CVE-2020-35951 is a critical vulnerability found in the Quiz and Survey Master plugin for WordPress, allowing users to delete arbitrary files and take control of a site.
How severe is CVE-2020-35951?
CVE-2020-35951 has a severity rating of 9.9 out of 10, making it a critical vulnerability.
How does CVE-2020-35951 affect WordPress?
CVE-2020-35951 affects the Quiz and Survey Master plugin before version 7.0.1, allowing attackers to delete important files and take a WordPress site offline.
How can I fix CVE-2020-35951?
To fix CVE-2020-35951, it is recommended to update the Quiz and Survey Master plugin to version 7.0.1 or later.
Where can I find more information about CVE-2020-35951?
More information about CVE-2020-35951 can be found at the following references: [Wordfence blog](https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/) and [WPScan vulnerability report](https://wpscan.com/vulnerability/10348).

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canonical/expresstech quiz and survey master

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