CVE-2026-14553: Unknown Zportals

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

The zportals WordPress plugin before 6.3.4 does not properly validate uploaded files, trusting the client-supplied content type and preserving the original file extension, allowing any authenticated user (Subscriber or higher) to upload arbitrary PHP files and achieve remote code execution.

Affected products

• Unknown Zportals: before 6.3.4 (fixed in 6.3.4)

Published 2026-08-05. Last modified 2026-08-26.