CVE-2020-8518: Debian Linux

Critical severity, CVSS 9.8. EPSS: 71.7% chance of exploitation in the next 30 days.

Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.

Affected products

• Debian Debian Linux: version 8.0 only
• Fedoraproject Fedora: version 30 only; version 31 only
• Horde Groupware: version 5.2.22 only

Published 2020-02-17. Last modified 2026-06-17.