Vulnerability identifier: #VU46975

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-24389

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drag and Drop Multiple File Upload – Contact Form 7
Web applications / Modules and components for CMS

Vendor: Glen Don L. Mongaya

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to the validation of dangerous file extensions fails within ".phar" and ".phpt". A remote attacker can upload a malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drag and Drop Multiple File Upload – Contact Form 7: 1.2.2 - 1.3.5.4

---

External links
http://wpvulndb.com/vulnerabilities/10411/
http://sysdream.com/news/lab/2020-09-21-cve-2020-24389-remote-code-execution-on-drag-and-drop-multiple-file-upload-contact-form-7/
http://plugins.trac.wordpress.org/changeset/2369106/drag-and-drop-multiple-file-upload-contact-form-7

---

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. However, proof of concept for this vulnerability is available.