Auth bypass in Advancedcustomfields Advanced_custom_fields
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…
Vulnerability class: Broken Access Control
EPSS: 0.017 (73.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Advancedcustomfields Advanced_custom_fields
- Delicious Brains Advanced Custom Fields And Pro — versions versions prior to 5.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-20866?
- CVE-2021-20866 is a medium-severity vulnerability in Advancedcustomfields Advanced_custom_fields, classified under Missing Authorization. CVSS score: 6.5/10. Published 2021-12-13.
- How severe is CVE-2021-20866?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-20866 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.