CVE-2020-26048: Cuppacms

High severity, CVSS 8.8. EPSS: 1.9% chance of exploitation in the next 30 days.

The file manager option in CuppaCMS before 2019-11-12 allows an authenticated attacker to upload a malicious file within an image extension and through a custom request using the rename function provided by the file manager is able to modify the image extension into PHP resulting in remote arbitrary code execution.

Affected products

• Cuppacms Cuppacms: before 2019-11-12 (fixed in 2019-11-12)

Published 2020-10-05. Last modified 2026-06-17.