CVE-2021-20867

Advanced Custom Fields <= 5.10 - Missing Authorization on Option Changes

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in moving the field group which may allow a user to move the unauthorized field group via unspecified vectors.

Advanced Custom Fields versiones anteriores a 5.11 y Advanced Custom Fields Pro versiones anteriores a 5.11, contienen una vulnerabilidad de falta de autorización al mover el grupo de campos que puede permitir a un usuario mover el grupo de campos no autorizado por medio de vectores no especificados

*Credits: Keitaro Yamazaki

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-12-02 CVE Published
2023-10-30 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-862: Missing Authorization

CAPEC

References (3)

URL	Tag	Source
https://jvn.jp/en/jp/JVN09136401/index.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://wordpress.org/plugins/advanced-custom-fields	2021-12-15
https://www.advancedcustomfields.com	2021-12-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Advancedcustomfields Search vendor "Advancedcustomfields"		Advanced Custom Fields Search vendor "Advancedcustomfields" for product "Advanced Custom Fields"				< 5.11 Search vendor "Advancedcustomfields" for product "Advanced Custom Fields" and version " < 5.11"		wordpress		Affected
Advancedcustomfields Search vendor "Advancedcustomfields"		Advanced Custom Fields Search vendor "Advancedcustomfields" for product "Advanced Custom Fields"				< 5.11 Search vendor "Advancedcustomfields" for product "Advanced Custom Fields" and version " < 5.11"		pro, wordpress		Affected