Improper Authentication in Ultimate Addons for Elementor plugin for WordPress

1) Improper Authentication

EUVDB-ID: #VU27671

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker can create subscriber-level users, even if registration is disabled on a WordPress site.

Note: This vulnerability is being used in conjunction with a 0-day vulnerability in Elementor PRO (SB2020051118) and allows the Elementor Pro vulnerability to be exploited, even if the site does not have user registration enabled. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ultimate Addons for Elementor: 1.1.0 - 1.24.1

External links

http://wpvulndb.com/vulnerabilities/10215/
http://www.wordfence.com/blog/2020/05/combined-attack-on-elementor-pro-and-ultimate-addons-for-elementor-puts-1-million-sites-at-risk/

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.