Arbitrary File Deletion in Simple File List plugin for WordPress

Published: 2020-06-03

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2020-12832
CWE-ID	CWE-22
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	Simple File List Web applications / Modules and components for CMS
Vendor	Mitchell Bennis - Element Engage, LLC

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Path traversal

EUVDB-ID: #VU28543

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12832

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote authenticated attacker can send a specially crafted HTTP request and delete arbitrary files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Simple File List: 1.0.1 - 4.2.7

External links

http://ctulhu.me/2020/05/16/cve-2020-12832/
http://plugins.trac.wordpress.org/changeset/2302759
http://wordpress.org/plugins/simple-file-list/#developers
http://wpvulndb.com/vulnerabilities/10250/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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