CVE-2023-0291

Name: CVE-2023-0291
Creator: NVD / NIST
Published: 2023-06-09T06:15:48.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 2.03%

Last modified Jun 17, 2026

CVE-2023-0291 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 2.03% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

2.03%

78.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Expresstech	Quiz And Survey Master	<= 8.0.8

References

https://packetstormsecurity.com/files/171011/wpqsm808-xsrf.txtNot Applicable, VDB Entry
https://plugins.trac.wordpress.org/changeset/2834471/quiz-master-nextPatch
https://wordpress.org/plugins/quiz-master-next/Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/68110321-db1a-4634-98cd-0afd3ec933b8?source=cveThird Party Advisory
https://packetstormsecurity.com/files/171011/wpqsm808-xsrf.txtNot Applicable, VDB Entry
https://plugins.trac.wordpress.org/changeset/2834471/quiz-master-nextPatch
https://wordpress.org/plugins/quiz-master-next/Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/68110321-db1a-4634-98cd-0afd3ec933b8?source=cveThird Party Advisory

Timeline

Published: Jun 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0291?

How severe is CVE-2023-0291?

CVE-2023-0291 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 2.03% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0291?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0291?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST