Quiz and Survey Master <= 7.0.0 - Unauthenticated Arbitrary File Deletion
Strategic Overview
< 7.0.1CVE-2020-35951Vulnerability Overview
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).
Technical Analysis
REMEDIATION: Update to version 7.0.1, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C