{"cve":"CVE-2021-36906","nvd":{"published":"2022-11-03T20:15:20.177","modified":"2026-06-17T03:59:36.497","status":"Modified","description":"Multiple Insecure Direct Object References (IDOR) vulnerabilities in ExpressTech Quiz And Survey Master plugin <= 7.3.6 on WordPress.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-639"],"references":["https://patchstack.com/database/vulnerability/quiz-master-next/wordpress-quiz-and-survey-master-plugin-7-3-6-multiple-insecure-direct-object-references-idor-vulnerabilities?_s_id=cve","https://wordpress.org/plugins/quiz-master-next/#developers","https://patchstack.com/database/vulnerability/quiz-master-next/wordpress-quiz-and-survey-master-plugin-7-3-6-multiple-insecure-direct-object-references-idor-vulnerabilities?_s_id=cve","https://wordpress.org/plugins/quiz-master-next/#developers"],"products":["expresstech:quiz_and_survey_master"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2021-36906","score":0.00723,"percentile":0.54034,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}