Path traversal in WP Fastest Cache plugin for WordPress

1) Path traversal

EUVDB-ID: #VU52597

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20714

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

Exploit availability: No

Description

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

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

WP Fastest Cache: 0.8.3.1 - 0.9.1.6

External links

http://jvn.jp/en/jp/JVN35240327/index.html

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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