Directory traversal in upgrade package uploader in WordPress WordPress

Published: 2016-09-07
Severity Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2016-7169
CWE ID CWE-22
Exploitation vector Network
Public exploit N/A
Vulnerable software WordPress Subscribe
Vendor WordPress.ORG

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Directory traversal in upgrade package uploader

Severity: Medium

CVSSv3: 6.3 [CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2016-7169

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient sanitization of input data within the upgrade package uploader. A remote authenticated user can use directory traversal sequences to write files outside the webroot directory.

Successful exploitation of this vulnerability may lead to website compromise.

Mitigation

Update your WordPress installation to one of the following versions:

3.7.x - 3.7.16
3.8.x - 3.8.16
3.9.x - 3.9.14
4.0.x - 4.0.13
4.1.x - 4.1.13
4.2.x - 4.2.10
4.3.x - 4.3.6
4.4.x - 4.4.5
4.5.x - 4.5.4
4.6.x - 4.6.1

Vulnerable software versions

WordPress: 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.7.6, 3.7.7, 3.7.8, 3.7.9, 3.7.10, 3.7.11, 3.7.12, 3.7.13, 3.7.14, 3.7.15, 3.8.1, 3.8.2, 3.8.3, 3.8.4, 3.8.5, 3.8.6, 3.8.7, 3.8.8, 3.8.9, 3.8.10, 3.8.11, 3.8.12, 3.8.13, 3.8.14, 3.8.15, 3.9.0, 3.9.1, 3.9.2, 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 3.9.8, 3.9.9, 3.9.10, 3.9.11, 3.9.12, 3.9.13, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.0.8, 4.0.9, 4.0.10, 4.0.11, 4.0.12, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.1.10, 4.1.11, 4.1.12, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.6, 4.2.7, 4.2.8, 4.2.9, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.5.1, 4.5.2, 4.5.3, 4.6

CPE External links

https://codex.wordpress.org/Version_3.7.16
https://codex.wordpress.org/Version_3.8.16
https://codex.wordpress.org/Version_3.9.14
https://codex.wordpress.org/Version_4.0.13
https://codex.wordpress.org/Version_4.1.13
https://codex.wordpress.org/Version_4.2.10
https://codex.wordpress.org/Version_4.3.6
https://codex.wordpress.org/Version_4.4.5
https://codex.wordpress.org/Version_4.5.4
https://codex.wordpress.org/Version_4.6.1

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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