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CVE-2026-103917

MEDIUM 6.5 CVSS 3.1
Published
November 7, 2026
Last modified
November 8, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-94
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

The The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 11.2.7. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. The submission nonce is dispensed to any unauthenticated caller by the public wp_ajax_nopriv_qsm_create_quiz_nonce endpoint, meaning it functions as a CSRF token rather than an authorization barrier and imposes no meaningful obstacle to exploitation.

Affected WordPress components

  • Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker Plugin · quiz-master-next
    Confirmed match Active
    Up to and including 11.2.7
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker — Up to and including 11.2.7

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.7/php/classes/class-qmn-quiz-manager.php#L2866
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.7/php/classes/class-qmn-quiz-manager.php#L517
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.7/php/classes/class-qmn-quiz-manager.php#L536
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.2.7/renderer/frontend/class-qsm-new-renderer.php#L244
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3729156%40quiz-master-next&new=3729156%40quiz-master-next
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/020209b3-2175-4509-836a-8a60ed4f4b15?source=cve
  • nvd.nist.gov Official NVD record