Vulnerability identifier: #VU42741

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-2201

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WordPress
Web applications / CMS

Vendor: WordPress.ORG

Description

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

An input validation error exists in WordPress before 3.5.2 when processing vectors involving (1) uploads of media files, (2) editing of media files, (3) installation of plugins, (4) updates to plugins, (5) installation of themes, or (6) updates to themes. A remote attacker can trick the victim to follow a 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

WordPress: 0.71, 1.0 - 1.0.2, 1.2 - 1.2.5, 1.5 - 1.5.2, 2.0 - 2.0.11, 2.1 - 2.1.3, 2.2 - 2.2.3, 2.3 - 2.3.3, 2.5 - 2.5.1, 2.6 - 2.6.5, 2.7 - 2.7.1, 2.8 - 2.8.6, 2.9 - 2.9.2, 3.3 - 3.3.3, 3.4.0 - 3.4.2, 3.5.0 - 3.5.1

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External links
http://codex.wordpress.org/Version_3.5.2
http://wordpress.org/news/2013/06/wordpress-3-5-2/
http://www.debian.org/security/2013/dsa-2718
http://bugzilla.redhat.com/show_bug.cgi?id=976784

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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.