The Quiz And Survey Master plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 8.0.8. This is due to missing nonce validation on the function associated with the qsm_remove_file_fd_question AJAX action. This makes it possible for unauthenticated attackers to delete arbitrary media files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Expresstech Quiz_And_Survey_Master
cpe:2.3:a:expresstech:quiz_and_survey_master:*:*:*:*:*:wordpress:*:*
|
— |
<= 8.0.8
|
References 4
https://packetstormsecurity.com/files/171011/wpqsm808-xsrf.txt
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/2834471/quiz-master-next
security@wordfence.com
https://wordpress.org/plugins/quiz-master-next/
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/c75e6d27-7f6b-4bec-b6…
security@wordfence.com