Prototype Pollution in klona package for NPM

Published: 2020-01-23

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	N/A
CWE-ID	CWE-94
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	klona Web applications / Modules and components for CMS
Vendor	lukeed

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Code Injection

EUVDB-ID: #VU24499

Risk: Medium

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can inject and execute arbitrary script code.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update to version 1.1.1.

Vulnerable software versions

klona: 0.0.0 - 1.1.0

CPE2.3

External links

http://www.npmjs.com/advisories/1463
http://hackerone.com/reports/778414

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.