Auth bypass in Expresstech Quiz And Survey Master
CVE-2023-0291
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.020 (80.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/68110321-db1a-4634-98cd-0afd3… (Third Party Advisory)
- wordpress.org/plugins/quiz-master-next/ (Product)
- packetstormsecurity.com/files/171011/wpqsm808-xsrf.txt (VDB Entry, Not Applicable)
- plugins.trac.wordpress.org/changeset/2834471/quiz-master-next (Patch)
Frequently asked questions
- What is CVE-2023-0291?
- CVE-2023-0291 is a high-severity vulnerability in Expresstech Quiz And Survey Master, classified under Missing Authorization. CVSS score: 7.2/10. Published 2023-06-09.
- How severe is CVE-2023-0291?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2023-0291 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.