new capacity bits (#67)

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Eli Peter 2026-05-07 01:29:31 -04:00 committed by GitHub
parent afaffc0df6
commit 7d0e7320e2
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261 changed files with 10591 additions and 231 deletions

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// Unsafe: Apache Velocity `Velocity.evaluate(ctx, out, "tag", src)` parses
// `src` as an inline template and renders it in one call. When `src` is
// taken from a request parameter, this is direct SSTI. Static-method
// shape ensures the chain text is `Velocity.evaluate`, matching the
// class-qualified Java SSTI rule without needing receiver type inference.
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import java.io.StringWriter;
import javax.servlet.http.HttpServletRequest;
public class UnsafeFreemarkerTemplate {
public String render(HttpServletRequest req) throws Exception {
String src = req.getParameter("template");
VelocityContext ctx = new VelocityContext();
StringWriter out = new StringWriter();
Velocity.evaluate(ctx, out, "user-template", src);
return out.toString();
}
}