Drupal core - SA-CORE-2020-006
JSON:API PATCH requests may bypass validation for certain fields.
By default, JSON:API works in a read-only mode which makes it impossible to exploit the vulnerability. Only sites that have the read_only set to FALSE under jsonapi.settings config are vulnerable.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/core | >= 8.0.0, < 8.8.8, >= 8.9.0, < 8.9.1, >= 9.0.0, < 9.0.1 | 8.8.8, 8.9.1, 9.0.1 |
| Composer package | drupal/drupal | >= 8.8.0, < 8.8.8, >= 8.9.0, < 8.9.1, >= 9.0.0, < 9.0.1 | 8.8.8, 8.9.1, 9.0.1 |
| Drupal (core) | drupal/core | >= 8.0.0, < 8.8.8, >= 8.9.0, < 8.9.1, >= 9.0.0, < 9.0.1 | 8.8.8, 8.9.1, 9.0.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-13665
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13665.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13665.yaml
- https://github.com/drupal/core
- https://www.drupal.org/sa-core-2020-006
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-863- Platform
- Composer, Drupal
- Package
drupal/core, drupal/drupal- Disclosed
- 17.06.2020
- Updated
- 11.10.2026 13:17
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wxqp-jwc9-g39x - CC BY 4.0
OSV / GitHub Advisory Database - DRUPAL-CORE-2020-006 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/core
All published vulnerabilities of this package (Drupal (core)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 165
- First → latest
- 02.2018 09.2026
- Without a fix
- 3
- Exploited in attacks
- 5
Severity breakdown
- Critical 17
- High 44
- Medium 72
- Low 6
- Unrated 26
Disclosures per year
- 2018: 4
- 2019: 14
- 2020: 12
- 2021: 11
- 2022: 61
- 2023: 6
- 2024: 36
- 2025: 8
- 2026: 13
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