CVE-2021-40510: Obdasystems Mastro

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

XML eXternal Entity (XXE) in OBDA systems’ Mastro 1.0 allows remote attackers to read system files via custom DTDs.

Affected products

• Obdasystems Mastro: version 1.0 only

Published 2022-06-21. Last modified 2026-06-17.