Vulnerability identifier: #VU64459

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-44123

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SPIP
Web applications / CMS

Vendor: spip.net

Description

The vulnerability allows a remote user to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of file during file upload. A remote user can upload a specially crafted malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SPIP: 4.0.0

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External links
http://git.spip.net/spip/spip/commit/1cf91def15966406ddd0488cf9d1ecd1ae82d47a

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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.