[pitboss] phase 04: Track J.2 + Track L.2 — SSTI corpus + Jinja2 / ERB / Twig / Thymeleaf / Handlebars adapters

tests/dynamic_fixtures/ssti/java_thymeleaf/vuln.java

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+// Phase 04 (Track J.2) — Java Thymeleaf SSTI vuln fixture.
+//
+// The body reaches TemplateEngine.process directly, so an attacker
+// who controls the body can render arbitrary Thymeleaf expressions.
+import org.thymeleaf.TemplateEngine;
+import org.thymeleaf.context.Context;
+
+public class Vuln {
+    public static String run(String body) {
+        TemplateEngine engine = new TemplateEngine();
+        Context ctx = new Context();
+        return engine.process(body, ctx);
+    }
+}