Vulnerability identifier: #VU32928

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-77

Exploitation vector: Network

Exploit availability: No

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

Vendor: Quil\'s Archive

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in the "child_process.exec" function. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

xps: 1.0.0 - 1.0.2

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External links
http://snyk.io/vuln/SNYK-JS-XPS-590098
http://github.com/sorellabs/xps/commit/768481146b8ead3811310eecc0f56e2d107cb740
http://hackerone.com/reports/865168
http://github.com/sorellabs/xps/blob/b6d819e95676dababe6c846e214cbf3313b6cd3f/lib/linux.js#L4

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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.