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CVE-2020-13665

CRITICAL
9.8
CVSS Score
Published: May 5, 2021 at 02:14 PM UTC
Updated: June 17, 2026 at 02:53 AM UTC
1 product affected across 1 vendorDrupal

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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%

Description

Access bypass vulnerability in Drupal Core allows JSON:API when JSON:API is in read/write mode. Only sites that have the read_only set to FALSE under jsonapi.settings config are vulnerable. This issue affects: Drupal Drupal Core 8.8.x versions prior to 8.8.8; 8.9.x versions prior to 8.9.1; 9.0.x versions prior to 9.0.1.

Affected

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

Drupal· Drupaldrupal
95%
8.8.0 ≤ v < 8.8.88.8.x ≤ v < 8.8.88.9.0 ≤ v < 8.9.18.9.x ≤ v < 8.9.19.0.0 ≤ v < 9.0.19.0.x ≤ v < 9.0.18.8.x8.9.x9.0.x
Affected range stops below 8.8.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.9.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.1, 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 (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.drupal.org/sa-core-2020-006

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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