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CVE-2021-20865

HIGH
7.5
CVSS Score
Published: December 13, 2021 at 06:40 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
2 products affected across 2 vendorsAdvanced Custom FieldsAdvanced Custom Fields

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Severity
HIGH7.5
Exploit prediction
EPSS 3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Advanced Custom Fields· Advancedcustomfieldswordpress-plugin
95%
v < 5.11
Affected range stops below 5.11, so it looks safe — our inference, not a vendor statement
Advanced Custom Fields· Deliciousbrainswordpress-plugin
60%
v < 5.11
Affected range stops below 5.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN09136401/index.html
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://wordpress.org/plugins/advanced-custom-fields/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.advancedcustomfields.com/

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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