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TI-2020-18392 Aliases CVE-2020-35951GHSA-r275-5g72-r3ph

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress.

Priority HIGH 82CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control. This occurred via qsm_remove_file_fd_question, which allowed unauthenticated deletions (even though it was only intended for a person to delete their own quiz-answer files).

Why it matters now

EPSS 0.76328 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:expresstech:quiz_and_survey_master:*:*:*:*:*:wordpress:*:*before 7.0.1VulnerableExpressTech
  • cpe:2.3:a:expresstech:quiz_and_survey_master:*:*:*:*:*:wordpress:*:* Versions before 7.0.1 Vulnerable ·ExpressTech

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-35951
  2. 2026-10-03 Alias added: GHSA-r275-5g72-r3ph

References

Exploit 2

  • TI-2024-05207 Quiz And Survey Master < 9.0.2 - Contributor+ SQLi CVSS 3.1HIGH 8.8
  • TI-2024-05583 Quiz and Survey Master < 9.0.5 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.5
  • TI-2024-09897 Quiz and Survey Master (QSM) < 9.2.1 - Author+ Stored XSS CVSS 3.1MEDIUM 6.1
  • TI-2024-05932 Quiz and Survey Master (QSM) < 9.1.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.9
  • TI-2024-04590 Quiz And Survey Master < 9.0.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.5
  • TI-2023-03337 Quiz And Survey Master < 8.1.11 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences