Vulnerability identifier: #VU61536

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26601

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImpressCMS
Web applications / CMS

Vendor: The ImpressCMS Project

Description

The vulnerability allows a remote user to delete arbitrary files on the system.

The vulnerability exists due to input validation error when processing directory traversal sequences in "/libraries/image-editor/image-edit.php". A remote authenticate user can send a specially crafted HTTP request and delete arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ImpressCMS: 1.0.0 - 1.4.2

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External links
http://karmainsecurity.com/KIS-2022-02
http://hackerone.com/reports/1081878

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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.