CVE-2023-0291 | BDVDB-2026-204384 Detail

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

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#

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact low. Attack vector: network.

Weaknesses#

CWE-862 Missing Authorization

References#

Exploit#

No public exploit known

History#

Version 12023-06-09Record published in the CVE List.
Version 22026-04-08Most recent update recorded in the CVE List.

Published

Published: 2023-06-09
Last modified: 2026-04-08

Vendor information

Vendor: expresstech
Product: Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker

All expresstech vulnerabilities

Score

7.2 High

EPSS

2.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 81.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Missing Authorization

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 8.0.8
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.2 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality	None
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).