Database Sql

Go ArticleRemove() SQL Injection via fmt.Sprintf IN Clause

The Go backend's `ArticleRemove` function built a SQL `DELETE` statement by joining a caller-supplied slice of article IDs directly into the query string with `fmt.Sprintf`. Because the `aids` values came straight from the frontend with no validation or escaping, an attacker could inject arbitrary SQL into the `IN(...)` clause. The fix replaces string concatenation with a parameterized query using placeholders and a `DB.Exec` argument list.