Vulnerability identifier: #VU43516

Vulnerability risk: Low

CVSSv3.1: 1.3 [CVSS:3.1/AV:N/AC:L/PR:/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-4422

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WordPress
Web applications / CMS

Vendor: WordPress.ORG

Description

The vulnerability allows a remote #AU# to manipulate data.

wp-admin/plugins.php in WordPress before 3.4.2, when the multisite feature is enabled, does not check for network-administrator privileges before performing a network-wide activation of an installed plugin, which might allow remote authenticated users to make unintended plugin changes by leveraging the Administrator role.

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, 3.0 - 3.0.6, 3.1 - 3.1.4, 3.2 - 3.2.1, 3.3 - 3.3.3, 3.4.0

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External links
http://codex.wordpress.org/Version_3.4.2
http://core.trac.wordpress.org/changeset?old_path=%2Ftags%2F3.4.1&old=21780&new_path=%2Ftags%2F3.4.2&new=21780#file42
http://openwall.com/lists/oss-security/2012/09/13/4

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.