Vulnerability identifier: #VU71577

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46175

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
json5
Web applications / JS libraries

Vendor: json5

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 within the JSON5.parse() function. 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
Install update from vendor's website.

Vulnerable software versions

json5: 2.2.0 - 2.2.1, 2.1.0 - 2.1.3, 2.0.0 - 2.0.1, 1.0.0 - 1.0.1, 0.5.0 - 0.5.1, 0.4.0, 0.3.0, 0.2.0, 0.1.0, 0.0.0 - 0.0.1

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External links
http://github.com/json5/json5/security/advisories/GHSA-9c47-m6qq-7p4h
http://github.com/json5/json5/issues/199
http://github.com/json5/json5/issues/295
http://github.com/json5/json5/pull/298

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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.