Quiz and Survey Master <= 7.0.1 - Arbitrary File Upload

9.8
Unrestricted Upload of File with Dangerous Type
CVSS 9.8 (Critical)
Publicly Published August 29, 2020
Last Updated January 22, 2024
Researcher Jerome Bruandet - NinTechNet

Description

The Quiz and Survey Master plugin for WordPress is vulnerable to arbitrary file uploads due to missing filename sanitization in the qsm_upload_image_fd_question() function in versions up to, and including, 7.0.1. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server using a double extension attack method which may make remote code execution possible on sites with a configuration that parse the first extension of a file. This is due to an incomplete fix of CVE-2020-35949.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

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Vulnerability Details for Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker

Software Type Plugin
Software Slug quiz-master-next (view on wordpress.org)
Patched? Yes
Remediation Update to version 7.0.2, or a newer patched version
Affected Version
  • <= 7.0.1
Patched Version
  • 7.0.2

Recent vulnerabilities in Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker

# Title CVE ID CVSS Researchers Date
1 Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker < 11.2.4 - Authenticated (Contributor+) Insecure Direct Object Reference CVE-2026-79615 4.3 Shikhali Jamalzade August 28, 2026
2 Quiz And Survey Master <= 11.2.3 - Authenticated (Contributor+) Insecure Direct Object Reference CVE-2026-14826 4.3 Revanth Hari Narayana Matte August 17, 2026
3 Quiz And Survey Master <= 11.2.3 - Authenticated (Contributor+) Insecure Direct Object Reference CVE-2026-14825 4.3 Revanth Hari Narayana Matte August 17, 2026
4 Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) SQL Injection via 'randon_category' Quiz Option CVE-2026-15963 6.5 Wordfence PRISM August 15, 2026
5 Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'question_title' Parameter CVE-2026-11780 6.4 Jonah Burgess (CryptoCat) August 15, 2026
6 Quiz And Survey Master <= 11.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2026-14824 6.4 Meher Sudhakar Abbireddi July 27, 2026
7 Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker <= 11.2.0 - Authenticated (Contributor+) SQL Injection CVE-2026-65454 6.5 anhcd05 July 22, 2026
8 Quiz and Survey Master (QSM) <= 11.2.0 - Authenticated (Custom+) SQL Injection via 'pages' Parameter CVE-2026-13767 6.5 Wordfence PRISM July 15, 2026
9 Quiz And Survey Master <= 11.1.4 - Missing Authorization CVE-2026-14821 4.3 Md. Minaruzzaman Shovon July 7, 2026
10 Quiz and Survey Master (QSM) <= 11.1.4 - Missing Authorization to Authenticated (Contributor+) Arbitrary Quiz Modification and Email Reroute via Leaked Nonce from /quiz/structure CVE-2026-9230 4.3 alex_henry20 July 2, 2026

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