Vulnerability identifier: #VU39588

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-8814

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Umbraco CMS
Web applications / CMS

Vendor: Umbraco

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Umbraco CMS: 7.3.8

---

External links
http://issues.umbraco.org/issue/U4-7459
http://www.openwall.com/lists/oss-security/2016/02/16/10
http://github.com/umbraco/Umbraco-CMS/commit/18c3345e47663a358a042652e697b988d6a380eb

---

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.