Vulnerability Details : CVE-2021-20866
Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in obtaining the user list which may allow a user to obtain the unauthorized information via unspecified vectors.
Products affected by CVE-2021-20866
- cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:pro:wordpress:*:*
- cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20866
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20866
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-20866
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20866
-
https://www.advancedcustomfields.com/
ACF | Advanced Custom Fields Plugin for WordPressVendor Advisory
-
https://jvn.jp/en/jp/JVN09136401/index.html
JVN#09136401: Multiple missing authorization vulnerabilities in WordPress Plugin "Advanced Custom Fields"Third Party Advisory
-
https://wordpress.org/plugins/advanced-custom-fields/
Advanced Custom Fields – WordPress plugin | WordPress.orgThird Party Advisory
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