CVE-2023-0291 - CVE House

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Status published High CVE-2023-0291

Quiz And Survey Master <= 8.0.8 - Unauthenticated Arbitrary Media Deletion

7.2 CVSS

Vulnerability Description

The Quiz And Survey Master for WordPress is vulnerable to authorization bypass due to a missing capability check on the function associated with the qsm_remove_file_fd_question AJAX action in versions up to, and including, 8.0.8. This makes it possible for unauthenticated attackers to delete arbitrary media files.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Julien Ahrens

References

More from expresstech

View All →

Quiz and Survey Master (QSM) <= 10.3.1 - Missing Authorization to Unpublished, Private And Password-Protected Quiz Information Disclosure And Image Response Uploads

Quiz and Survey Master (QSM) <= 10.3.1 - Authenticated (Subscriber+) SQL Injection via `is_linking` Query Parameter

Quiz And Survey Master <= 10.3.1 - Missing Authorization to Authenticated (Subscriber+) Quiz Results Deletion

Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress <= 9.0.1 - Authenticated (Contributor+) SQL Injection

Quiz And Survey Master <= 8.0.8 - Cross-Site Request Forgery to Arbitrary Media Deletion

Affected Vendor

expresstech

View all reports →

Affected Software

Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker

Vulnerable Versions:

0

Timeline

Official Publish: June 9th, 2023

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1078 Valid Accounts

T1531 Account Access Removal