Verified70% confidenceFactExact time
The principle of SQL injection is that an attacker inserts malicious SQL statement fragments into user input fields; when the backend directly concatenates user input into database query statements, it is executed by the database engine, leading to data leakage, authentication bypass, or even database write operations.
4
Sources
70%
Confidence
Long-term
Relevance
9/11/2026
First Seen
Sources
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