CVE-2020-35949: An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It made it possible for unauthenticated attackers to upload arbitrary files and achieve remote code executio...

Summary

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It made it possible for unauthenticated attackers to upload arbitrary files and achieve remote code execution. If a quiz question could be answered by uploading a file, only the Content-Type header was checked d...

What to do

Update expresstech quiz_and_survey_master to version 7.0.1 or later.

Affected software

Vendor	Product	Affected versions
expresstech	quiz_and_survey_master	< 7.0.1 `cpe:2.3:a:expresstech:quiz_and_survey_master::::::wordpress::*`

Original advisory text

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It made it possible for unauthenticated attackers to upload arbitrary files and achieve remote code executio...

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It made it possible for unauthenticated attackers to upload arbitrary files and achieve remote code execution. If a quiz question could be answered by uploading a file, only the Content-Type header was checked during the upload, and thus the attacker could use text/plain for a .php file.

References

https://wpscan.com/vulnerability/10349 Exploit Third Party Advisory
https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-... Exploit Third Party Advisory