Arbitrary file upload in WP-LiveChat WP Live Chat Support for WordPress
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-12426 |
| CWE-ID | CWE-434 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
WP Live Chat Support Web applications / Modules and components for CMS |
| Vendor | WP-LiveChat |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Arbitrary file upload
EUVDB-ID: #VU18516
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-12426
CWE-ID:
CWE-434 - Unrestricted Upload of File with Dangerous Type
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to absent validation of file extension when uploading files via v1/remote_upload request. A remote attacker can upload and execute arbitrary .php file on the server and execute it.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Install updates from vendor's website.
Vulnerable software versionsWP Live Chat Support: 1.0 - 8.0.06
External linkshttp://github.com/CodeCabin/wp-live-chat-support/blob/master/readme.txt
http://github.com/RiieCco/write-ups/tree/master/CVE-2018-12426
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. However, proof of concept for this vulnerability is available.
