Vulnerability identifier: #VU8540

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3670

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Liferay Enterprise Portal
Web applications / CMS

Vendor: Liferay

Description

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in users.jsp in the Profile Search functionality in Liferay before 7.0.0 CE RC1 when processing FirstName field. 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
Update to version 7.0.0 CE RC1.

Vulnerable software versions

Liferay Enterprise Portal: 6.2.0 B1 - 6.2.4 GA5

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External links
http://labs.integrity.pt/advisories/cve-2016-3670/ 
http://issues.liferay.com/browse/LPS-62387

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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. However, proof of concept for this vulnerability is available.