1) Improper access control

Risk: Critical

CVSSv3: 9.4 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can access the debug log after the password reset, grab the reset link and take over the admin account.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Easy WP SMTP: 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.1.0, 1.1.9, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.7, 1.2.9, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.5, 1.3.6, 1.3.9, 1.3.9.1, 1.3.9.2, 1.3.9.3, 1.4.0, 1.4.1, 1.4.2

CPE

• cpe:/a:wpecommerce:easy-wp-smtp:1.4.2:
• cpe:/a:wpecommerce:easy-wp-smtp:1.4.1:
• cpe:/a:wpecommerce:easy-wp-smtp:1.4.0:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.9.3:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.9.2:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.9:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.9.1:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.6:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.5:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.3:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.2:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.1:
• cpe:/a:wpecommerce:easy-wp-smtp:1.3.0:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.9:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.7:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.4:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.3:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.2:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.1:
• cpe:/a:wpecommerce:easy-wp-smtp:1.2.0:
• cpe:/a:wpecommerce:easy-wp-smtp:1.1.9:
• cpe:/a:wpecommerce:easy-wp-smtp:1.1.0:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.9:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.8:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.7:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.6:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.5:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.4:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.3:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.2:
• cpe:/a:wpecommerce:easy-wp-smtp:1.0.1:

External links

https://www.zdnet.com/article/zero-day-in-wordpress-smtp-plugin-abused-to-reset-admin-account-passwords/

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?

Yes. This vulnerability is being exploited in the wild.