diff --git a/ruoyi-admin/src/main/java/org/dromara/web/controller/CaptchaController.java b/ruoyi-admin/src/main/java/org/dromara/web/controller/CaptchaController.java
index f1e5c32bb..d91373890 100644
--- a/ruoyi-admin/src/main/java/org/dromara/web/controller/CaptchaController.java
+++ b/ruoyi-admin/src/main/java/org/dromara/web/controller/CaptchaController.java
@@ -58,7 +58,7 @@ public class CaptchaController {
      * @param phoneNumber 用户手机号
      * @return 操作结果
      */
-    @RateLimiter(key = "#phonenumber", time = 60, count = 1)
+    @RateLimiter(key = "#phoneNumber", time = 60, count = 1)
     @GetMapping("/resource/sms/code")
     public R<Void> smsCode(@NotBlank(message = "{user.phonenumber.not.blank}") String phoneNumber) {
         if (!RegexValidator.isMobile(phoneNumber)) {
@@ -66,7 +66,6 @@ public class CaptchaController {
         }
         String key = GlobalConstants.CAPTCHA_CODE_KEY + phoneNumber;
         String code = RandomUtil.randomNumbers(4);
-        RedisUtils.setCacheObject(key, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
         // 验证码模板id 自行处理 (查数据库或写死均可)
         String templateId = "";
         LinkedHashMap<String, String> map = new LinkedHashMap<>(1);
@@ -75,8 +74,10 @@ public class CaptchaController {
         SmsResponse smsResponse = smsBlend.sendMessage(phoneNumber, templateId, map);
         if (!smsResponse.isSuccess()) {
             log.error("验证码短信发送异常 => {}", smsResponse);
-            return R.fail(smsResponse.getData().toString());
+            Object data = smsResponse.getData();
+            return R.fail(data == null ? "验证码短信发送失败" : data.toString());
         }
+        RedisUtils.setCacheObject(key, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
         return R.ok();
     }
 
@@ -107,13 +108,13 @@ public class CaptchaController {
     public void emailCodeImpl(String email) {
         String key = GlobalConstants.CAPTCHA_CODE_KEY + email;
         String code = RandomUtil.randomNumbers(4);
-        RedisUtils.setCacheObject(key, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
         try {
             MailBuilder.of()
                 .to(email)
                 .subject("登录验证码")
                 .text("您本次验证码为：" + code + "，有效性为" + Constants.CAPTCHA_EXPIRATION + "分钟，请尽快填写。")
                 .send();
+            RedisUtils.setCacheObject(key, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
         } catch (Exception e) {
             log.error("验证码短信发送异常 => {}", e.getMessage());
             throw new ServiceException(e.getMessage());
diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ValidatorUtils.java b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ValidatorUtils.java
index 06b8fd66e..f5f8646fe 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ValidatorUtils.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ValidatorUtils.java
@@ -26,6 +26,9 @@ public class ValidatorUtils {
      * @throws ConstraintViolationException 如果校验不通过，则抛出参数校验异常
      */
     public static <T> void validate(T object, Class<?>... groups) {
+        if (object == null) {
+            throw new RuntimeException("请求参数不能为空");
+        }
         Set<ConstraintViolation<T>> validate = VALID.validate(object, groups);
         if (!validate.isEmpty()) {
             throw new ConstraintViolationException("参数校验异常", validate);
diff --git a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/DropDownOptions.java b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/DropDownOptions.java
index 41d953521..05b362ecf 100644
--- a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/DropDownOptions.java
+++ b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/DropDownOptions.java
@@ -51,6 +51,9 @@ public class DropDownOptions {
      * 分隔符
      */
     private static final String DELIMITER = "_";
+    private static final String OPTION_PART_REGEX = "^[A-Za-z0-9\\u4e00-\\u9fa5]+$";
+    private static final String EXCEL_NAME_REGEX = "^[A-Za-z_\\u4e00-\\u9fa5][A-Za-z0-9_\\u4e00-\\u9fa5]*$";
+    private static final String CELL_REFERENCE_REGEX = "^[A-Za-z]{1,3}[1-9][0-9]*$";
 
     /**
      * 创建只有一级的下拉选
@@ -69,10 +72,9 @@ public class DropDownOptions {
      */
     public static String createOptionValue(Object... vars) {
         StringBuilder stringBuffer = new StringBuilder();
-        String regex = "^[\\S\\d\\u4e00-\\u9fa5]+$";
         for (int i = 0; i < vars.length; i++) {
             String var = StrUtil.trimToEmpty(Convert.toStr(vars[i]));
-            if (!var.matches(regex)) {
+            if (!var.matches(OPTION_PART_REGEX)) {
                 throw new ServiceException("选项数据不符合规则，仅允许使用中英文字符以及数字");
             }
             stringBuffer.append(var);
@@ -81,10 +83,29 @@ public class DropDownOptions {
                 stringBuffer.append(DELIMITER);
             }
         }
-        if (stringBuffer.toString().matches("^\\d_*$")) {
+        String optionValue = stringBuffer.toString();
+        validateOptionValue(optionValue);
+        return optionValue;
+    }
+
+    /**
+     * 校验级联下拉选项值是否可作为 Excel 名称管理器名称。
+     *
+     * @param optionValue 选项值
+     */
+    public static void validateOptionValue(String optionValue) {
+        if (StrUtil.isBlank(optionValue)) {
+            throw new ServiceException("选项数据不能为空");
+        }
+        if (optionValue.matches("^[0-9].*")) {
             throw new ServiceException("禁止以数字开头");
         }
-        return stringBuffer.toString();
+        if (!optionValue.matches(EXCEL_NAME_REGEX)) {
+            throw new ServiceException("选项数据不符合Excel名称规则，仅允许中英文、数字或下划线，且不能以数字开头");
+        }
+        if (optionValue.matches(CELL_REFERENCE_REGEX)) {
+            throw new ServiceException("选项数据不能为Excel单元格引用");
+        }
     }
 
     /**
diff --git a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java
index f8dd5f864..6912386c6 100644
--- a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java
+++ b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java
@@ -202,6 +202,7 @@ public class ExcelDownHandler implements SheetWriteHandler {
         if (CollUtil.isEmpty(firstOptions)) {
             return;
         }
+        validateLinkedOptionNames(firstOptions);
         Map<String, List<String>> secoundOptionsMap = new HashMap<>();
         options.getNextOptions().forEach((k, v) -> secoundOptionsMap.put(k, new ArrayList<>(v)));
 
@@ -313,6 +314,19 @@ public class ExcelDownHandler implements SheetWriteHandler {
         currentLinkedOptionsSheetIndex++;
     }
 
+    /**
+     * 校验级联下拉一级选项可作为 Excel 名称，且不能重复。
+     */
+    private void validateLinkedOptionNames(List<String> firstOptions) {
+        Set<String> names = new HashSet<>();
+        for (String firstOption : firstOptions) {
+            DropDownOptions.validateOptionValue(firstOption);
+            if (!names.add(firstOption)) {
+                throw new ServiceException("级联下拉一级选项重复：" + firstOption);
+            }
+        }
+    }
+
     /**
      * <h2>额外表格形式的普通下拉框</h2>
      * 由于下拉框可选值数量过多，为提升Excel打开效率，使用额外表格形式做下拉
diff --git a/ruoyi-common/ruoyi-common-redis/src/main/java/org/dromara/common/redis/aspectj/RepeatSubmitAspect.java b/ruoyi-common/ruoyi-common-redis/src/main/java/org/dromara/common/redis/aspectj/RepeatSubmitAspect.java
index 8a5490ac4..f24e9159c 100644
--- a/ruoyi-common/ruoyi-common-redis/src/main/java/org/dromara/common/redis/aspectj/RepeatSubmitAspect.java
+++ b/ruoyi-common/ruoyi-common-redis/src/main/java/org/dromara/common/redis/aspectj/RepeatSubmitAspect.java
@@ -24,6 +24,7 @@ import org.dromara.common.redis.utils.RedisUtils;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.lang.reflect.Array;
 import java.time.Duration;
 import java.util.Collection;
 import java.util.Map;
@@ -150,16 +151,30 @@ public class RepeatSubmitAspect {
     public boolean isFilterObject(final Object o) {
         Class<?> clazz = o.getClass();
         if (clazz.isArray()) {
-            return MultipartFile.class.isAssignableFrom(clazz.getComponentType());
+            if (MultipartFile.class.isAssignableFrom(clazz.getComponentType())) {
+                return true;
+            }
+            int length = Array.getLength(o);
+            for (int i = 0; i < length; i++) {
+                Object value = Array.get(o, i);
+                if (ObjectUtil.isNotNull(value) && isFilterObject(value)) {
+                    return true;
+                }
+            }
+            return false;
         } else if (Collection.class.isAssignableFrom(clazz)) {
             Collection collection = (Collection) o;
             for (Object value : collection) {
-                return value instanceof MultipartFile;
+                if (ObjectUtil.isNotNull(value) && isFilterObject(value)) {
+                    return true;
+                }
             }
         } else if (Map.class.isAssignableFrom(clazz)) {
             Map map = (Map) o;
             for (Object value : map.values()) {
-                return value instanceof MultipartFile;
+                if (ObjectUtil.isNotNull(value) && isFilterObject(value)) {
+                    return true;
+                }
             }
         }
         return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/listener/DeptExcelConverter.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/listener/DeptExcelConverter.java
index d370c3dab..e6a8b20d3 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/listener/DeptExcelConverter.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/listener/DeptExcelConverter.java
@@ -10,6 +10,7 @@ import org.apache.fesod.sheet.metadata.GlobalConfiguration;
 import org.apache.fesod.sheet.metadata.data.ReadCellData;
 import org.apache.fesod.sheet.metadata.data.WriteCellData;
 import org.apache.fesod.sheet.metadata.property.ExcelContentProperty;
+import org.dromara.common.core.exception.ServiceException;
 import org.dromara.common.core.utils.SpringUtils;
 import org.dromara.common.core.utils.StringUtils;
 import org.dromara.common.core.utils.TreeBuildUtils;
@@ -93,7 +94,11 @@ public class DeptExcelConverter implements Converter<Long> {
         if (StringUtils.isBlank(deptName)) {
             return null;
         }
-        return getDeptMaps().nameToId().get(deptName);
+        Long deptId = getDeptMaps().nameToId().get(deptName);
+        if (deptId == null) {
+            throw new ServiceException("部门不存在：" + deptName);
+        }
+        return deptId;
     }
 
     /**