CVE-2023-31689: Wcms

Critical severity, CVSS 9.8. EPSS: 20.2% chance of exploitation in the next 30 days.

In Wcms 0.3.2, an attacker can send a crafted request from a vulnerable web application backend server /wcms/wex/html.php via the finish parameter and the textAreaCode parameter. It can write arbitrary strings into custom file names and upload any files, and write malicious code to execute scripts to trigger command execution.

Affected products

• Wcms Wcms: version 0.3.2 only

Published 2023-05-22. Last modified 2026-06-17.