Vulnerability identifier: #VU6856

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-9331

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
EPESI
Web applications / CMS

Vendor: Telaxus LLC

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in modules/Utils/RecordBrowser/RecordBrowserCommon_0.php, when processing data passed via the meeting description parameter. A remote attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in victim's browser in security 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 update from vendor's website.

Vulnerable software versions

EPESI: 1.5.0 - 1.8.2

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External links
http://github.com/Telaxus/EPESI/commit/dda3e5f3843e80fe9ed36115f4fe72c06a3a41bc
http://github.com/Telaxus/EPESI/issues/193

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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.