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VulnerabilityPublished

CVE-2026-103917: Quiz and Survey Master (QSM) (WordPress plugin) · Code Injection

Affects Quiz and Survey Master (QSM) (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 7 Nov 2026, 06:53 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Wordfence)CVSS 3.16.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
expresstechQuiz and Survey Master (QSM) – Quiz Maker & Survey MakerAffected
  • <=11.2.7
Fixed in–

AI-suggested

Until a fix is available, consider restricting access to the affected AJAX endpoint or disabling the plugin if feasible to prevent exploitation.

Description

The Quiz and Survey Master (QSM) plugin for WordPress up to version 11.2.7 contains a code injection vulnerability that allows unauthenticated attackers to execute arbitrary shortcodes. This occurs because the plugin improperly validates input before calling do_shortcode, and the nonce used for submission is accessible without authentication, providing no effective protection against exploitation.

References

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