#VU52903 Prototype pollution in mquery


Published: 2021-05-06

Vulnerability identifier: #VU52903

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-35149

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
mquery
Universal components / Libraries / Software for developers

Vendor: Aaron Heckmann

Description

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

The vulnerability exists due to improper input validation in lib/utils.js during merge or clone operations. A remote attacker can send a specially crafted request and execute arbitrary JavaScript code.


Mitigation
Install updates from vendor's website.

Vulnerable software versions

mquery: 0.0.1 - 3.2.2


External links
http://github.com/aheckmann/mquery/commit/792e69fd0a7281a0300be5cade5a6d7c1d468ad4


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.


Latest bulletins with this vulnerability