diff --git a/src/main/java/com/moplus/moplus_server/client/submit/controller/ClientSubmitController.java b/src/main/java/com/moplus/moplus_server/client/submit/controller/ClientSubmitController.java
index 25c495c..21153cc 100644
--- a/src/main/java/com/moplus/moplus_server/client/submit/controller/ClientSubmitController.java
+++ b/src/main/java/com/moplus/moplus_server/client/submit/controller/ClientSubmitController.java
@@ -8,6 +8,8 @@
 import com.moplus.moplus_server.client.submit.dto.request.ProblemSubmitCreateRequest;
 import com.moplus.moplus_server.client.submit.dto.request.ProblemSubmitUpdateRequest;
 import com.moplus.moplus_server.client.submit.service.ClientSubmitService;
+import com.moplus.moplus_server.global.annotation.AuthUser;
+import com.moplus.moplus_server.member.domain.Member;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
@@ -29,43 +31,48 @@ public class ClientSubmitController {
     @PostMapping("problemSubmit")
     @Operation(summary = "문항 제출 생성", description = "문항 제출을 '진행중'으로 생성합니다.")
     public ResponseEntity<Void> createProblemSubmit(
-            @RequestBody ProblemSubmitCreateRequest request
+            @RequestBody ProblemSubmitCreateRequest request,
+            @AuthUser Member member
             ) {
-        clientSubmitService.createProblemSubmit(request);
+        clientSubmitService.createProblemSubmit(member.getId(), request);
         return ResponseEntity.ok(null);
     }
 
     @PutMapping("problemSubmit")
     @Operation(summary = "문항 제출 업데이트", description = "제출한 답안을 바탕으로 문항 제출의 상태를 업데이트합니다.")
     public ResponseEntity<ProblemSubmitStatus> updateProblemSubmit(
-            @RequestBody ProblemSubmitUpdateRequest request
+            @RequestBody ProblemSubmitUpdateRequest request,
+            @AuthUser Member member
     ) {
-        return ResponseEntity.ok(clientSubmitService.updateProblemSubmit(request));
+        return ResponseEntity.ok(clientSubmitService.updateProblemSubmit(member.getId(), request));
     }
 
     @PostMapping("childProblemSubmit")
     @Operation(summary = "새끼문항 제출 생성", description = "문항에 속한 새끼문항들을 '시작전'으로 생성합니다.")
     public ResponseEntity<Void> createProblemSubmit(
-            @RequestBody ChildProblemSubmitCreateRequest request
+            @RequestBody ChildProblemSubmitCreateRequest request,
+            @AuthUser Member member
     ) {
-        clientSubmitService.createChildProblemSubmit(request);
+        clientSubmitService.createChildProblemSubmit(member.getId(), request);
         return ResponseEntity.ok(null);
     }
 
     @PutMapping("childProblemSubmit")
     @Operation(summary = "새끼문항 제출 업데이트", description = "제출한 답안을 바탕으로 문항 제출의 상태를 업데이트합니다.")
     public ResponseEntity<ChildProblemSubmitStatus> updateChildProblemSubmit(
-            @RequestBody ChildProblemSubmitUpdateRequest request
+            @RequestBody ChildProblemSubmitUpdateRequest request,
+            @AuthUser Member member
     ) {
-        return ResponseEntity.ok(clientSubmitService.updateChildProblemSubmit(request));
+        return ResponseEntity.ok(clientSubmitService.updateChildProblemSubmit(member.getId(), request));
     }
 
     @PutMapping("childProblemSubmit/incorrect")
     @Operation(summary = "새끼문항 제출 틀림 업데이트", description = "새끼문항 제출의 상태를 틀림으로 업데이트합니다.")
     public ResponseEntity<Void> updateChildProblemSubmitIncorrect(
-            @RequestBody ChildProblemSubmitUpdateIncorrectRequest request
+            @RequestBody ChildProblemSubmitUpdateIncorrectRequest request,
+            @AuthUser Member member
     ) {
-        clientSubmitService.updateChildProblemSubmitIncorrect(request);
+        clientSubmitService.updateChildProblemSubmitIncorrect(member.getId(), request);
         return ResponseEntity.ok(null);
     }
 }
diff --git a/src/main/java/com/moplus/moplus_server/client/submit/controller/CommentaryGetController.java b/src/main/java/com/moplus/moplus_server/client/submit/controller/CommentaryGetController.java
index b46ad78..025566c 100644
--- a/src/main/java/com/moplus/moplus_server/client/submit/controller/CommentaryGetController.java
+++ b/src/main/java/com/moplus/moplus_server/client/submit/controller/CommentaryGetController.java
@@ -2,6 +2,8 @@
 
 import com.moplus.moplus_server.client.submit.dto.response.CommentaryGetResponse;
 import com.moplus.moplus_server.client.submit.service.CommentaryGetService;
+import com.moplus.moplus_server.global.annotation.AuthUser;
+import com.moplus.moplus_server.member.domain.Member;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
@@ -23,8 +25,9 @@ public class CommentaryGetController {
     @Operation(summary = "해설 조회", description = "문항 별 해설/처방을 조회합니다.")
     public ResponseEntity<CommentaryGetResponse> getCommentary(
             @RequestParam(value = "publishId", required = false) Long publishId,
-            @RequestParam(value = "problemId", required = false) Long problemId
-    ) {
-        return ResponseEntity.ok(commentaryGetService.getCommentary(publishId, problemId));
+            @RequestParam(value = "problemId", required = false) Long problemId,
+            @AuthUser Member member
+            ) {
+        return ResponseEntity.ok(commentaryGetService.getCommentary(member.getId(), publishId, problemId));
     }
 }
diff --git a/src/main/java/com/moplus/moplus_server/client/submit/service/ClientSubmitService.java b/src/main/java/com/moplus/moplus_server/client/submit/service/ClientSubmitService.java
index f6ebd58..11c4066 100644
--- a/src/main/java/com/moplus/moplus_server/client/submit/service/ClientSubmitService.java
+++ b/src/main/java/com/moplus/moplus_server/client/submit/service/ClientSubmitService.java
@@ -34,8 +34,7 @@ public class ClientSubmitService {
     private final ChildProblemRepository childProblemRepository;
 
     @Transactional
-    public void createProblemSubmit(ProblemSubmitCreateRequest request) {
-        Long memberId = 1L;
+    public void createProblemSubmit(Long memberId, ProblemSubmitCreateRequest request) {
 
         // 존재하는 발행인지 검증
         publishRepository.existsByIdElseThrow(request.publishId());
@@ -52,8 +51,7 @@ public void createProblemSubmit(ProblemSubmitCreateRequest request) {
     }
 
     @Transactional
-    public ProblemSubmitStatus updateProblemSubmit(ProblemSubmitUpdateRequest request) {
-        Long memberId = 1L;
+    public ProblemSubmitStatus updateProblemSubmit(Long memberId, ProblemSubmitUpdateRequest request) {
 
         // 존재하는 발행인지 검증
         publishRepository.existsByIdElseThrow(request.publishId());
@@ -73,8 +71,7 @@ public ProblemSubmitStatus updateProblemSubmit(ProblemSubmitUpdateRequest reques
     }
 
     @Transactional
-    public void createChildProblemSubmit(ChildProblemSubmitCreateRequest request) {
-        Long memberId = 1L;
+    public void createChildProblemSubmit(Long memberId, ChildProblemSubmitCreateRequest request) {
 
         // 존재하는 발행인지 검증
         publishRepository.existsByIdElseThrow(request.publishId());
@@ -115,8 +112,7 @@ public void createChildProblemSubmit(ChildProblemSubmitCreateRequest request) {
     }
 
     @Transactional
-    public ChildProblemSubmitStatus updateChildProblemSubmit(ChildProblemSubmitUpdateRequest request) {
-        Long memberId = 1L;
+    public ChildProblemSubmitStatus updateChildProblemSubmit(Long memberId, ChildProblemSubmitUpdateRequest request) {
 
         // 존재하는 발행인지 검증
         publishRepository.existsByIdElseThrow(request.publishId());
@@ -136,8 +132,7 @@ public ChildProblemSubmitStatus updateChildProblemSubmit(ChildProblemSubmitUpdat
     }
 
     @Transactional
-    public void updateChildProblemSubmitIncorrect(ChildProblemSubmitUpdateIncorrectRequest request) {
-        Long memberId = 1L;
+    public void updateChildProblemSubmitIncorrect(Long memberId, ChildProblemSubmitUpdateIncorrectRequest request) {
 
         // 존재하는 발행인지 검증
         publishRepository.existsByIdElseThrow(request.publishId());
diff --git a/src/main/java/com/moplus/moplus_server/client/submit/service/CommentaryGetService.java b/src/main/java/com/moplus/moplus_server/client/submit/service/CommentaryGetService.java
index cbbb914..140c647 100644
--- a/src/main/java/com/moplus/moplus_server/client/submit/service/CommentaryGetService.java
+++ b/src/main/java/com/moplus/moplus_server/client/submit/service/CommentaryGetService.java
@@ -1,6 +1,8 @@
 package com.moplus.moplus_server.client.submit.service;
 
 import com.moplus.moplus_server.admin.publish.domain.Publish;
+import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmit;
+import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmitStatus;
 import com.moplus.moplus_server.client.submit.domain.ProblemSubmit;
 import com.moplus.moplus_server.client.submit.dto.response.ChildProblemDetailResponse;
 import com.moplus.moplus_server.client.submit.dto.response.CommentaryGetResponse;
@@ -33,8 +35,7 @@ public class CommentaryGetService {
     private final ChildProblemSubmitRepository childProblemSubmitRepository;
 
     @Transactional(readOnly = true)
-    public CommentaryGetResponse getCommentary(Long publishId, Long problemId) {
-        Long memberId = 1L;
+    public CommentaryGetResponse getCommentary(Long memberId, Long publishId, Long problemId) {
 
         // 발행 조회
         Publish publish = publishRepository.findByIdElseThrow(publishId);
@@ -56,8 +57,10 @@ public CommentaryGetResponse getCommentary(Long publishId, Long problemId) {
                 .map(cp -> ChildProblemDetailResponse.of(
                         cp.getImageUrl(),
                         cp.getPrescriptionImageUrls(),
-                        childProblemSubmitRepository.findByMemberIdAndPublishIdAndChildProblemIdElseThrow(memberId, publishId,
-                                cp.getId()).getStatus()
+                        childProblemSubmitRepository.findByMemberIdAndPublishIdAndChildProblemId(memberId, publishId,
+                                        cp.getId())
+                                .map(ChildProblemSubmit::getStatus)
+                                .orElse(ChildProblemSubmitStatus.NOT_STARTED)
                 )).toList();
 
         // 처방 정보 생성