Vulnerability identifier: #VU17894

Vulnerability risk: Medium

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2018-18934

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PopojiCMS
Web applications / Modules and components for CMS

Vendor: PopojiCMS

Description

The vulnerability allows a remote attacker to upload dangerous files to the system.

The vulnerability exists due to insufficient validation of the uploaded files passed via the "fupload" parameter to "po-admin/route.php?mod=component&act=addnew" URI. A remote authenticated administrator can upload a .zip archive with .php file inside and execute it with privileges of the web server.

Note, this vulnerability can be exploited via CSRF attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PopojiCMS: 2.0.1

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External links
http://github.com/PopojiCMS/PopojiCMS/issues/12
http://github.com/PopojiCMS/PopojiCMS/issues/13

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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. However, proof of concept for this vulnerability is available.