🛡️ CVE-2020-13675
🔴 CVSS 9.5 — Critical ✅ No Known Exploit OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run all file validation, which causes an access bypass vulnerability. An attacker might be able to upload files that bypass the file validation process implemented by modules on the site. This vulnerability is mitigated by three factors: 1. The JSON:API or REST File upload modules must be enabled on the site. 2. An attacker must have access to a file upload via JSON:API or REST. 3. The site must employ a file validation module. This advisory is not covered by [Drupal Steward](/steward). Also see [GraphQL - Moderately critical - Access bypass - SA-CONTRIB-2021-029](https://www.drupal.org/sa-contrib-2021-029) which addresses a similar vulnerability for that module.

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-03-06
Updated 2026-06-15
Modified 2025-12-10
Fix URL N/A

Affected Packages

Software From version Fixed in
drupal — —
drupal/core 9.2.0 9.2.6
drupal/graphql 4.0.0 4.2.0

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