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CVE-2021-20865

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5...

7.5 High

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

2.65%Up 1.8 points since Dec 13, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.

Record
CVE-2021-20865
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02
CVE List No score

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.

Record
CVE-2021-20865
Updated
2026-11-02
EUVDEUVD-2021-8274 No score

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.

Record
EUVD-2021-8274
Updated
2026-11-03
GitHub AdvisoriesGHSA-f2fc-p952-6xf6 No score

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5...

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.

Record
GHSA-f2fc-p952-6xf6
Weakness
CWE-862
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-20865 is a high vulnerability (CVSS 7.5) in Advancedcustomfields Advanced Custom Fields, published December 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.65%, the 85th percentile. No source names a fixed version.

References

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