diff --git a/src/handlers/payment.rs b/src/handlers/payment.rs
index a55a3d4..c710b78 100644
--- a/src/handlers/payment.rs
+++ b/src/handlers/payment.rs
@@ -910,16 +910,13 @@ fn format_error_html(msg: &str, order_no: &str) -> String {
 
 #[get("/payment/success")]
 pub async fn payment_success(
-    pool: web::Data<PgPool>,
+    _pool: web::Data<PgPool>,
     query: web::Query<AlipaySuccessQuery>,
 ) -> HttpResponse {
     let order_no = query.order_no.as_deref().unwrap_or("");
 
-    // 同步确认订单（幂等：已确认的订单会跳过）
-    if !order_no.is_empty()
-        && let Err(e) = db::confirm_payment_order_by_orderno(pool.get_ref(), order_no).await {
-            tracing::warn!("支付成功页同步确认失败（可能是异步回调已处理）: {}", e);
-        }
+    // 不再在此处确认订单（安全原因: 此端点无认证, 任何人知道 order_no 即可激活会员）。
+    // Mock 支付由 mock_confirm 在跳转前确认, 真实支付宝由 notify 异步回调确认。
 
     let html = build_success_html(order_no);
     HttpResponse::Ok()
@@ -1028,6 +1025,7 @@ pub async fn create_order(
 }
 
 /// POST /api/payment/mock-confirm
+/// 仅在未配置支付宝时可用（否则用户可绕过真实支付）
 #[post("/api/payment/mock-confirm")]
 pub async fn mock_confirm(
     pool: web::Data<PgPool>,
@@ -1035,8 +1033,13 @@ pub async fn mock_confirm(
     body: web::Json<MockConfirmRequest>,
 ) -> Result<HttpResponse, AppError> {
     check_payment_maintenance()?;
-    let user_id = claims.user_id;
 
+    // 安全守卫：已配置支付宝时禁用 Mock 支付，防止绕过
+    if AlipayConfig::from_env().is_some() {
+        return Err(AppError::BadRequest("真实支付已启用，Mock 支付不可用".to_string()));
+    }
+
+    let user_id = claims.user_id;
     let expires_at =
         db::confirm_payment_order(pool.get_ref(), &body.order_id, user_id).await?;