Vulnerability identifier: #VU5467

Vulnerability risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-1639

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Office for Mac
Client/Desktop applications / Office applications

Vendor: Microsoft

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

The vulnerability exists due to insufficient sanitization of user-input in Microsoft Outlook App for Mac. A remote attacker can create a specially crafted email message, trick the victim into opening it 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 update from vendor's website.

Vulnerable software versions

Microsoft Office for Mac: 2011

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External links
http://technet.microsoft.com/en-us/library/security/ms15-033.aspx

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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.