SQL Server has a surprising number of security vulnerabilities, potentially leading to severe consequences. Worst of all, you may not be aware of many of them. From data correlation exploitation, to indexed view tampering, to view-based security flaws, and more – Fabiano Amorim reveals all in this detailed series.

Fabiano Amorim in SQL Server

SQL Server security vulnerabilities you weren’t aware of: how tampered indexed-view metadata can break cross-database isolation

Indexed view tampering in SQL Server backups can expose cross-database data after restore. Learn how restore-boundary attacks work and how…

18 May 2026 18 min read 1

Fabiano Amorim in SQL Server

Cross-database ownership chaining in SQL Server: security risks, behavior, and privilege escalation explained

Learn how cross-database ownership chaining works in SQL Server, how permissions are evaluated, and why it can introduce security risks…

13 April 2026 12 min read 2

Fabiano Amorim in SQL Server

Exploiting SQL Server Date Correlation Optimization: How Tampered Backups Enable Cross‑Database Data Leaks

This article reveals a critical SQL Server flaw: attackers can weaponize Date Correlation Optimization (DCO) views in restored backups to…

07 January 2026 19 min read 2

Fabiano Amorim in Data Security, Privacy, and Compliance

SQL Server Privilege Escalation via Replication Jobs

Learn how attackers can exploit SQL Server replication cleanup jobs to escalate privileges from db_owner to sysadmin, and discover practical…

22 December 2025 5 min read 31

Fabiano Amorim in Data Security, Privacy, and Compliance

SQL Server security vulnerabilities you weren’t aware of: DBaaS system code decryption & user data exfiltration

A SQL Server DBaaS privilege bypass exposed system tables and vendor-protected code on AWS, GCP, and Alibaba. This explains the…

05 November 2025 30 min read 43

Data Security, Privacy, and Compliance

Fabiano Amorim in Data Security, Privacy, and Compliance

SQL Server View-Based Security Flaw: How Error Messages Expose Hidden Data

View-based row-level security in SQL Server leaks information through error messages – a user who can’t see a row can…

19 October 2020 11 min read