CVE-2020-35951

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).

• CWE-306

• https://wpscan.com/vulnerability/10348Exploit, Third Party Advisory
• https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/Exploit, Third Party Advisory
• https://wpscan.com/vulnerability/10348Exploit, Third Party Advisory
• https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/Exploit, Third Party Advisory

Published

Jan 1, 2021

Last Modified

Jun 17, 2026

Status

Modified

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