Is CVE-2020-13665 actively exploited?

No active exploitation of CVE-2020-13665 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-13665 be exploited remotely?

Yes. CVE-2020-13665 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-13665?

CVE-2020-13665 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-13665

CRITICAL

CVE-2020-13665

NVD-CWE-noinfoPublished: May 5, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-13665 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.