#VU75351 Improper access control in Drupal

Vulnerability identifier: #VU75351

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description

The vulnerability allows a remote attacker to gain unauthorized access to files.

The vulnerability exists due to improper access restrictions in the file download facility. A remote attacker can bypass implemented security restrictions and gain to private files.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drupal: 7.x-dev - 7.95, 9.0.0 alpha1 - 9.0.14, 9.1.0 - 9.1.15, 9.2.0 rc1 - 9.2.21, 9.3.0 rc1 - 9.3.22, 9.4.0 rc1 - 9.4.13, 9.5.0 beta1, 9.5.0 rc1, 9.5.0 rc2, 9.5.0 beta2, 9.5.0, 9.5.1, 9.5.2, 9.5.3, 9.5.4, 9.5.5, 9.5.6, 9.5.7, 10.0.0 alpha1 - 10.0.7

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External links
https://www.drupal.org/sa-core-2023-005

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.