diff --git a/platform/backend/app/api/articles.py b/platform/backend/app/api/articles.py
index 7708b57..844e579 100644
--- a/platform/backend/app/api/articles.py
+++ b/platform/backend/app/api/articles.py
@@ -1,3 +1,4 @@
+import re
 from fastapi import APIRouter, HTTPException, Query, Depends, Body
 from sqlalchemy.orm import Session
 from sqlalchemy import or_
@@ -171,6 +172,8 @@ def get_optimization_report(publish_date: str = None, current_user: User = Depen
     """获取合规优化报告"""
     if not publish_date:
         publish_date = date.today().isoformat()
+    if not re.match(r'^\d{4}-\d{2}-\d{2}$', publish_date):
+        raise HTTPException(status_code=400, detail="Invalid date format (expected YYYY-MM-DD)")
     PROJECT_ROOT = Path('/root/openclaw-workspace/projects/yu-zhi-ran')
     report_path = PROJECT_ROOT / "automation" / "data" / "drafts" / publish_date / "optimization_report.json"
     if not report_path.exists():
diff --git a/platform/backend/app/api/optimizer_logs.py b/platform/backend/app/api/optimizer_logs.py
index 1cd9a65..c1271b3 100644
--- a/platform/backend/app/api/optimizer_logs.py
+++ b/platform/backend/app/api/optimizer_logs.py
@@ -1,3 +1,4 @@
+import re
 from fastapi import APIRouter, Depends, HTTPException, Request
 from sqlalchemy.orm import Session
 from pathlib import Path
@@ -58,6 +59,11 @@ def get_logs(
     """
     if not type or not date:
         raise HTTPException(status_code=400, detail="type and date parameters are required")
+    _ALLOWED_LOG_TYPES = {"creator", "collector", "optimizer", "sources", "metrics", "trends", "rank_tracker"}
+    if type not in _ALLOWED_LOG_TYPES:
+        raise HTTPException(status_code=400, detail=f"Invalid log type: {type}")
+    if not re.match(r'^\d{4}-\d{2}-\d{2}$', date):
+        raise HTTPException(status_code=400, detail="Invalid date format (expected YYYY-MM-DD)")
     logs_dir = PROJECT_ROOT / "automation" / "logs"
     filename = f"{type}_{date}.log"
     log_path = logs_dir / filename
diff --git a/platform/backend/app/api/platform_config.py b/platform/backend/app/api/platform_config.py
index e70ecad..54a7e5e 100644
--- a/platform/backend/app/api/platform_config.py
+++ b/platform/backend/app/api/platform_config.py
@@ -5,7 +5,7 @@ from typing import List, Optional
 from ..database import get_db
 from ..models import PlatformConfig
 from ..schemas import PlatformConfigCreate, PlatformConfigUpdate, PlatformConfigResponse
-from .auth import get_current_user
+from .auth import get_current_admin
 
 router = APIRouter(prefix="/api/platform-config", tags=["platform-config"])
 
@@ -14,7 +14,7 @@ router = APIRouter(prefix="/api/platform-config", tags=["platform-config"])
 def list_platforms(
     active_only: bool = True,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     query = db.query(PlatformConfig)
     if active_only:
@@ -26,7 +26,7 @@ def list_platforms(
 def create_platform(
     data: PlatformConfigCreate,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     existing = db.query(PlatformConfig).filter(PlatformConfig.platform == data.platform).first()
     if existing:
@@ -39,7 +39,7 @@ def create_platform(
 
 
 @router.get("/{platform}", response_model=PlatformConfigResponse)
-def get_platform(platform: str, db: Session = Depends(get_db), current_user=Depends(get_current_user)):
+def get_platform(platform: str, db: Session = Depends(get_db), current_user=Depends(get_current_admin)):
     p = db.query(PlatformConfig).filter(PlatformConfig.platform == platform).first()
     if not p:
         raise HTTPException(status_code=404, detail="平台不存在")
@@ -47,7 +47,7 @@ def get_platform(platform: str, db: Session = Depends(get_db), current_user=Depe
 
 
 @router.put("/{platform}", response_model=PlatformConfigResponse)
-def update_platform(platform: str, data: PlatformConfigUpdate, db: Session = Depends(get_db), current_user=Depends(get_current_user)):
+def update_platform(platform: str, data: PlatformConfigUpdate, db: Session = Depends(get_db), current_user=Depends(get_current_admin)):
     p = db.query(PlatformConfig).filter(PlatformConfig.platform == platform).first()
     if not p:
         raise HTTPException(status_code=404, detail="平台不存在")
@@ -59,7 +59,7 @@ def update_platform(platform: str, data: PlatformConfigUpdate, db: Session = Dep
 
 
 @router.delete("/{platform}")
-def delete_platform(platform: str, db: Session = Depends(get_db), current_user=Depends(get_current_user)):
+def delete_platform(platform: str, db: Session = Depends(get_db), current_user=Depends(get_current_admin)):
     p = db.query(PlatformConfig).filter(PlatformConfig.platform == platform).first()
     if not p:
         raise HTTPException(status_code=404, detail="平台不存在")
diff --git a/platform/backend/app/api/system.py b/platform/backend/app/api/system.py
index 38d5762..663cd3c 100644
--- a/platform/backend/app/api/system.py
+++ b/platform/backend/app/api/system.py
@@ -17,7 +17,7 @@ from ..core.collector import run_collector, get_collector_status, _running_proce
 import threading
 from ..core.sync import sync_all_topics
 from ..core.scheduler import scheduler
-from .auth import get_current_user, org_filter
+from .auth import get_current_user, get_current_admin, org_filter
 
 PROJECT_ROOT = Path(__file__).resolve().parents[4]
 if os.getenv('PROJECT_ROOT'):
@@ -211,8 +211,14 @@ def review_status():
         return {"status": "idle", "message": "当前无运行中的审查任务"}
     return status
 
+_ALLOWED_LOG_TYPES = {"creator", "collector", "optimizer", "sources", "metrics", "trends", "rank_tracker"}
+
 @router.get("/logs/{log_date}", dependencies=[Depends(get_current_user)])
 def get_logs(log_date: str, log_type: str = "creator"):
+    if log_type not in _ALLOWED_LOG_TYPES:
+        raise HTTPException(status_code=400, detail=f"Invalid log_type: {log_type}")
+    if not re.match(r'^\d{4}-\d{2}-\d{2}$', log_date):
+        raise HTTPException(status_code=400, detail="Invalid log_date format (expected YYYY-MM-DD)")
     log_file = LOGS_DIR / f"{log_type}_{log_date}.log"
     if not log_file.exists():
         raise HTTPException(status_code=404, detail=f"Log file not found: {log_file}")
diff --git a/platform/backend/app/api/topic_config.py b/platform/backend/app/api/topic_config.py
index 8c35a32..d3fca38 100644
--- a/platform/backend/app/api/topic_config.py
+++ b/platform/backend/app/api/topic_config.py
@@ -9,7 +9,7 @@ from ..schemas import (
     TopicFieldBase, TopicFieldResponse,
     TopicConfigFieldBase, TopicConfigFieldResponse
 )
-from .auth import get_current_user
+from .auth import get_current_admin
 
 router = APIRouter(prefix="/api/topic-config", tags=["topic-config"])
 
@@ -18,7 +18,7 @@ router = APIRouter(prefix="/api/topic-config", tags=["topic-config"])
 def list_fields(
     include_inactive: bool = False,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     query = db.query(TopicField)
     if not include_inactive:
@@ -30,7 +30,7 @@ def list_fields(
 def create_field(
     data: TopicFieldBase,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     existing = db.query(TopicField).filter(TopicField.name == data.name).first()
     if existing:
@@ -47,7 +47,7 @@ def update_field(
     field_id: int,
     data: TopicFieldBase,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     field = db.query(TopicField).filter(TopicField.id == field_id).first()
     if not field:
@@ -63,7 +63,7 @@ def update_field(
 def delete_field(
     field_id: int,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     field = db.query(TopicField).filter(TopicField.id == field_id).first()
     if not field:
@@ -77,7 +77,7 @@ def delete_field(
 def get_scoring_fields(
     field_id: int,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     field = db.query(TopicField).filter(TopicField.id == field_id).first()
     if not field:
@@ -92,7 +92,7 @@ def create_scoring_field(
     field_id: int,
     data: TopicConfigFieldBase,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     field = db.query(TopicField).filter(TopicField.id == field_id).first()
     if not field:
@@ -117,7 +117,7 @@ def update_scoring_field(
     config_id: int,
     data: TopicConfigFieldBase,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     cfg = db.query(TopicConfigField).filter(TopicConfigField.id == config_id).first()
     if not cfg:
@@ -133,7 +133,7 @@ def update_scoring_field(
 def delete_scoring_field(
     config_id: int,
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     cfg = db.query(TopicConfigField).filter(TopicConfigField.id == config_id).first()
     if not cfg:
@@ -148,7 +148,7 @@ def batch_create_scoring_fields(
     field_id: int,
     fields: List[TopicConfigFieldBase],
     db: Session = Depends(get_db),
-    current_user=Depends(get_current_user)
+    current_user=Depends(get_current_admin)
 ):
     field = db.query(TopicField).filter(TopicField.id == field_id).first()
     if not field:
diff --git a/platform/backend/app/api/topics.py b/platform/backend/app/api/topics.py
index 23c7622..46060b3 100644
--- a/platform/backend/app/api/topics.py
+++ b/platform/backend/app/api/topics.py
@@ -167,7 +167,7 @@ def create_topic(
             try:
                 num = int(max_topic.id[1:]) + 1
                 topic_id = f"T{num:03d}"
-            except:
+            except (ValueError, TypeError):
                 topic_id = f"T{datetime.now().strftime('%m%d%H%M')}"
         else:
             topic_id = f"T{datetime.now().strftime('%m%d%H%M')}"