Access Bypass Vulnerability in Drupal's JSON:API and REST/File Modules
CVE-2020-13675

9.8CRITICAL

Key Information:

Vendor
Drupal
Status
Core
Vendor
CVE Published:
11 February 2022

Summary

Drupal's JSON:API and REST/File modules are susceptible to an access bypass issue due to insufficient file validation during file uploads via their HTTP APIs. Exploiting this vulnerability allows attackers to upload unauthorized files, potentially leading to malicious actions on the affected website. Proper validation procedures must be implemented to mitigate the risks associated with this flaw.

Affected Version(s)

Core 9.2.x < 9.2.6

Core 9.1.x < 9.1.13

Core 8.9.x < 8.9.19

References

https://www.drupal.org/sa-core-2021-008
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.