Vulnerability identifier: #VU18901

Vulnerability risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TYPO3
Web applications / CMS

Vendor: TYPO3

Description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions when uploading files via the Import/Export module. A remote authenticated user can bypass ACL restrictions and access import functionality.

This vulnerability does not allow uploading of dangerous files, but can be used in conjunction with other issues to elevate privileges within the application using other vulnerabilities.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TYPO3: 9.5.0 - 9.5.7, 9.3.0 - 9.4.0

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External links
http://typo3.org/security/advisory/typo3-core-sa-2019-017/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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