Vulnerability identifier: #VU8508
Vulnerability risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-22
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
WordPress
Web applications /
CMS
Vendor: WordPress.ORG
Description
The vulnerability allows a remote attacker to read arbitrary files on the system.
The vulnerability exists due to insufficient sanitization of user-supplied data in the file unzipping code in the ZipArchive and PclZip components. A remote attacker can send a specially crafted HTTP request containing directory traversal sequences and view contest of arbitrary file on vulnerable system.
Mitigation
Update to version 4.8.2.
Vulnerable software versions
WordPress: 4.8 - 4.8.1
External links
http://wordpress.org/news/2017/09/wordpress-4-8-2-security-and-maintenance-release/
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.