CVE-2018-16604: Nibbleblog

High severity, CVSS 7.2. EPSS: 1.5% chance of exploitation in the next 30 days.

An issue was discovered in Nibbleblog v4.0.5. With an admin's username and password, an attacker can execute arbitrary PHP code by changing the username because the username is surrounded by double quotes (e.g., "${phpinfo()}").

Affected products

• Nibbleblog Nibbleblog: version 4.0.5 only

Published 2018-09-06. Last modified 2026-06-17.