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Test ID:1.3.6.1.4.1.25623.1.0.112799
Category:Web application abuses
Title:WordPress Elegant Themes Extra Theme 2.0 <= 4.5.2 Authenticated Arbitrary File Upload Vulnerability
Summary:The WordPress theme Extra by Elegant Themes is prone to an authenticated arbitrary file upload vulnerability.
Description:Summary:
The WordPress theme Extra by Elegant Themes is prone to an authenticated arbitrary file upload vulnerability.

Vulnerability Insight:
The theme uses a client-side file type verification check, but it was missing a server-side verification check.
This flaw made it possible for authenticated attackers to easily bypass the JavaScript client-side check and upload
malicious PHP files to a targeted website.

An attacker could easily use a malicious file uploaded via this method to completely take over a site.

Vulnerability Impact:
This flaw gave authenticated attackers, with contributor-level or above capabilities,
the ability to upload arbitrary files, including PHP files, and achieve remote code execution on a vulnerable site's server.

Affected Software/OS:
WordPress Extra theme by Elegant Themes versions 2.0 through 4.5.2.

Solution:
Update to version 4.5.3 or later.

CVSS Score:
9.0

CVSS Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C

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