Vulnerability identifier: #VU58479

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20866

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Advanced Custom Fields
Web applications / Modules and components for CMS

Vendor: Delicious Brains

Description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to missing authorization related to user list obtaining. A remote authenticated attacker can obtain a list of information that an user do not have the privilege for.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Advanced Custom Fields: 5.8.12 - 5.10.2

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External links
http://jvn.jp/en/jp/JVN09136401/index.html

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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.