An issue was discovered in the Viral Quiz Maker - OnionBuzz plugin before 1.2.7 for WordPress. One could exploit the id parameter in the set_count ajax nopriv handler due to there being no sanitization prior to use in a SQL query in saveQuestionVote. This allows an unauthenticated/unprivileged user to perform a SQL injection attack capable of remote code execution and information disclosure.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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