CVE-2020-23138: Microweber

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

An unrestricted file upload vulnerability was discovered in the Microweber 1.1.18 admin account page. An attacker can upload PHP code or any extension (eg- .exe) to the web server by providing image data and the image/jpeg content type with a .php extension.

Affected products

• Microweber Microweber: version 1.1.18 only

Published 2020-11-09. Last modified 2026-06-17.