CVE-2020-18178: Hongcms Project Hongcms

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Path Traversal in HongCMS v4.0.0 allows remote attackers to view, edit, and delete arbitrary files via a crafted POST request to the component "/hcms/admin/index.php/language/ajax."

Affected products

• Hongcms Project Hongcms: version 4.0.0 only

Published 2021-05-18. Last modified 2026-06-17.