Vulnerability identifier: #VU59912

Vulnerability risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-0253

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Live Helper Chat
Mobile applications / Apps for mobile phones

Vendor: Live Helper Chat

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 Webhooks feature. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

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 updates from vendor's website.

Vulnerable software versions

Live Helper Chat: 1.60 - 3.90

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External links
http://github.com/livehelperchat/livehelperchat/commit/407d0b1a1fa56fa6f824a19092774f10f4880437
http://huntr.dev/bounties/ac7f7eba-ee0b-4a50-bd89-29fd9b3e8303

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.