#VU81117 Prototype pollution in min-dash - CVE-2021-23460

Vulnerability identifier: #VU81117

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-23460

CWE-ID: CWE-1321

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
min-dash
Other software / Other software solutions

Vendor: bpmn.io

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

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

Vulnerable software versions

min-dash: before 3.8.1

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External links
https://snyk.io/vuln/SNYK-JS-MINDASH-2340605
https://github.com/bpmn-io/min-dash/blob/c4d579c0eb2ed0739592111c3906b198921d3f52/lib/object.js%23L32
https://github.com/bpmn-io/min-dash/pull/21
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2342127
https://github.com/bpmn-io/min-dash/pull/21/commits/5ab05cbc4fd8d5eafb7db540c491ed0906b9d320

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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.