Vulnerability identifier: #VU201

Vulnerability risk: High

CVSSv3.1: 6.2 [AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-1000028

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tenable Nessus
Client/Desktop applications / Software for system administration

Vendor: Tenable Network Security

Description
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to improper filtering of HTML code from user-supplied input. A remote authenticated user can cause arbitrary scripting code execution by the target authenticated user's browser. The code will originate from the site running the Tenable Nessus software. As a result, the code will be able to access the target user's cookies, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

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
The vendor has issued a fix (6.8).

Vulnerable software versions

Tenable Nessus: 6.0.0 - 6.1.11

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External links
http://www.tenable.com/security/tns-2016-11

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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.