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Vulnerability record · CVE-2021-36906 · published 3 November 2022

CVE-2021-36906: Expresstech quiz and survey master insecure direct object reference vulnerability

Expresstech · Quiz And Survey Master

Multiple Insecure Direct Object References (IDOR) vulnerabilities in ExpressTech Quiz And Survey Master plugin <= 7.3.6 on WordPress.

8.8 CVSS 3.1 High EPSS 0.58% · top 54.4% CWE-639 · Insecure direct object reference
8.8CVSS 3.1 base score
0.58%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Multiple Insecure Direct Object References (IDOR) vulnerabilities in ExpressTech Quiz And Survey Master plugin <= 7.3.6 on WordPress.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://patchstack.com/database/vulnerability/quiz-master-next/wordpress-quiz-and-survey-master-plugin-7-3-6-multiple-in Third Party Advisory
https://wordpress.org/plugins/quiz-master-next/#developers ProductRelease NotesThird Party Advisory
https://patchstack.com/database/vulnerability/quiz-master-next/wordpress-quiz-and-survey-master-plugin-7-3-6-multiple-in Third Party Advisory
https://wordpress.org/plugins/quiz-master-next/#developers ProductRelease NotesThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-36906), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.