Arbitrary file upload in jQuery File Upload - CVE-2018-9206

Vulnerability identifier: #VU15424

CSH Severity: Critical

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red

CVE-ID: CVE-2018-9206

CWE-ID: CWE-434

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: blueimp

Affected software:
jQuery File Upload

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists in the plugin's source code that handles file uploads to PHP servers due to software allows upload of arbitrary files to the system. A remote unauthenticated attacker can upload arbitrary .htaccess file to impose security restrictions to its upload folder and upload backdoors and web shells.

Note: The vulnerability has been actively exploited for at least 3 years.

Update to version 9.22.1 or later.

• http://www.vapidlabs.com/advisory.php?v=204