diff --git a/sdk-webview/src/main/java/com/xuqm/sdk/webview/XWebViewView.kt b/sdk-webview/src/main/java/com/xuqm/sdk/webview/XWebViewView.kt
index ac98b89..d22be73 100644
--- a/sdk-webview/src/main/java/com/xuqm/sdk/webview/XWebViewView.kt
+++ b/sdk-webview/src/main/java/com/xuqm/sdk/webview/XWebViewView.kt
@@ -360,6 +360,7 @@ fun XWebViewView(
     // <input type="file" capture> camera capture
     val pendingFileCallback = remember { mutableStateOf<ValueCallback<Array<Uri>>?>(null) }
     val pendingCameraUri = remember { mutableStateOf<Uri?>(null) }
+    val pendingAcceptMimes = remember { mutableStateOf<Array<String>?>(null) }
 
     val takePictureLauncher = rememberLauncherForActivityResult(
         ActivityResultContracts.TakePicture()
@@ -374,7 +375,28 @@ fun XWebViewView(
     val pickContentLauncher = rememberLauncherForActivityResult(GetContentWithMimeTypes()) { uri ->
         val cb = pendingFileCallback.value
         pendingFileCallback.value = null
-        cb?.onReceiveValue(if (uri != null) arrayOf(uri) else null)
+        if (uri == null) {
+            cb?.onReceiveValue(null)
+            return@rememberLauncherForActivityResult
+        }
+        // Validate that the selected file's actual MIME type is within the accepted list.
+        // Some devices show extra file types in the picker (e.g. .doc when only .docx was
+        // requested). Passing an unsupported type to the WebView renderer can cause a native
+        // crash. We accept the file only when its MIME type matches, or fall back to passing
+        // it through when we can't determine the type (to avoid blocking legitimate uploads).
+        val acceptedMimes = pendingAcceptMimes.value
+        val actualMime = uri.let { context.contentResolver.getType(it) }
+        val allowed = acceptedMimes.isNullOrEmpty() ||
+            acceptedMimes.any { accepted ->
+                accepted == "*/*" ||
+                (actualMime != null && (actualMime == accepted || actualMime.startsWith(accepted.substringBefore("*"))))
+            }
+        if (!allowed) {
+            android.util.Log.w("XWV", "Rejected file: actualMime=$actualMime not in accepted=$acceptedMimes")
+            cb?.onReceiveValue(null)
+        } else {
+            cb?.onReceiveValue(arrayOf(uri))
+        }
     }
 
     val shouldLaunchCamera = remember { mutableStateOf(false) }
@@ -605,6 +627,7 @@ fun XWebViewView(
                         pendingFileCallback.value = filePathCallback
 
                         val acceptMimes = resolvePickerMimeTypes(fileChooserParams.acceptTypes)
+                        pendingAcceptMimes.value = acceptMimes
                         val isCameraCapture = fileChooserParams.isCaptureEnabled &&
                             fileChooserParams.acceptTypes.any { it.contains("image") }
                         val isImageOnly = acceptMimes.all { it.startsWith("image/") || it == "image/*" }