#VU27672 Arbitrary file upload in Elementor Pro

Vulnerability identifier: #VU27672

Vulnerability risk: High

CVSSv4.0: 9.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/U:Amber]

CVE-ID: N/A

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Elementor Pro
Web applications / Modules and components for CMS

Vendor: Elementor

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote authenticated attacker can upload a malicious file and execute it on the blog.

This vulnerability is exploitable if users have open registration, hovewer in conjunction with a vulnerability in Ultimate Addons for Elementor (SB2020051119), it is possible to be exploited, even if the site does not have user registration enabled.

Note: The vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Elementor Pro: 2.9.3

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External links
https://wpvulndb.com/vulnerabilities/10214/
https://blog.nintechnet.com/zero-day-vulnerability-exploited-in-elementor-pro/
https://www.wordfence.com/blog/2020/05/combined-attack-on-elementor-pro-and-ultimate-addons-for-elementor-puts-1-million-sites-at-risk/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.