Arbitrary file upload in Quiz And Survey Master – Best Quiz Plugin for WordPress

1) Arbitrary file upload

EUVDB-ID: #VU46130

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a malicious file and execute it on the server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Quiz And Survey Master – Best Quiz Plugin for WordPress: 0.1 - 7.0.1

External links

http://wpvulndb.com/vulnerabilities/10380/
http://plugins.trac.wordpress.org/changeset/2363719/quiz-master-next/trunk/php/classes/class-qmn-quiz-manager.php?old=2353115&old_path=quiz-master-next%2Ftrunk%2Fphp%2Fclasses%2Fclass-qmn-quiz-manager.php

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.