#VU18518 Cross-site scripting in WP Live Chat Support - CVE-2017-2187

Vulnerability identifier: #VU18518

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-2187

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WP Live Chat Support
Web applications / Modules and components for CMS

Vendor: WP-LiveChat

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. The vulnerability allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

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

WP Live Chat Support: 6.0.00 - 7.0.06

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External links
https://jvn.jp/en/jp/JVN70951878/index.html
https://plugins.trac.wordpress.org/changeset/1658232/

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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.