diff --git a/src/page/template/content/conversation/input-bar.htm b/src/page/template/content/conversation/input-bar.htm
index a1440d7cd86..f793372a3f2 100644
--- a/src/page/template/content/conversation/input-bar.htm
+++ b/src/page/template/content/conversation/input-bar.htm
@@ -101,7 +101,7 @@
 
               <label id="conversation-input-bar-photo" class="controls-right-button button-icon-large">
                 <image-icon></image-icon>
-                <input data-bind="attr: {accept: allowedImageTypes}, file_select: uploadImages" type="file" multiple="multiple" data-uie-name="do-share-image"/>
+                <input data-bind="attr: {accept: acceptedImageTypes}, file_select: uploadImages" type="file" multiple="multiple" data-uie-name="do-share-image"/>
               </label>
 
               <label id="conversation-input-bar-files" class="controls-right-button button-icon-large" data-bind="attr: {title: t('tooltipConversationFile')}">
diff --git a/src/script/Config.ts b/src/script/Config.ts
index 08134318c9c..0936b739b00 100644
--- a/src/script/Config.ts
+++ b/src/script/Config.ts
@@ -105,7 +105,8 @@ export class Configuration {
   /** measured in pixel */
   readonly SCROLL_TO_LAST_MESSAGE_THRESHOLD = 100;
 
-  readonly ALLOWED_IMAGE_TYPES = ['image/bmp', 'image/gif', 'image/jpeg', 'image/jpg', 'image/png', '.jpg-large'];
+  /** Image MIME types */
+  readonly ALLOWED_IMAGE_TYPES = ['image/bmp', 'image/gif', 'image/jpeg', 'image/jpg', 'image/png'];
 }
 
 let instance: Configuration;
diff --git a/src/script/components/asset/imageAsset.ts b/src/script/components/asset/imageAsset.ts
index ed4e8790584..989d0acc7d9 100644
--- a/src/script/components/asset/imageAsset.ts
+++ b/src/script/components/asset/imageAsset.ts
@@ -24,6 +24,7 @@ import type {MediumImage} from '../../entity/message/MediumImage';
 import {viewportObserver} from '../../ui/viewportObserver';
 import {AbstractAssetTransferStateTracker} from './AbstractAssetTransferStateTracker';
 import './AssetLoader';
+import {Config} from '../../Config';
 
 interface Params {
   asset: MediumImage;
@@ -60,8 +61,16 @@ class ImageAssetComponent extends AbstractAssetTransferStateTracker {
         if (this.isVisible() && asset.resource()) {
           this.assetRepository
             .load(asset.resource())
-            .then(blob => {
-              this.imageUrl(window.URL.createObjectURL(blob));
+            .then((blob: Blob) => {
+              const allowedImageTypes = [
+                'application/octet-stream', // Octet-stream is required to paste images from clipboard
+                ...Config.getConfig().ALLOWED_IMAGE_TYPES,
+              ];
+              if (allowedImageTypes.includes(blob.type)) {
+                this.imageUrl(window.URL.createObjectURL(blob));
+              } else {
+                throw new Error(`Unsupported image type "${blob.type}".`);
+              }
             })
             .catch(error => console.error(error));
         }
diff --git a/src/script/view_model/content/InputBarViewModel.ts b/src/script/view_model/content/InputBarViewModel.ts
index 8735135b427..473bffe57f1 100644
--- a/src/script/view_model/content/InputBarViewModel.ts
+++ b/src/script/view_model/content/InputBarViewModel.ts
@@ -104,7 +104,8 @@ export class InputBarViewModel {
   readonly renderMessage: typeof renderMessage;
   readonly input: ko.Observable<string>;
   private readonly showAvailabilityTooltip: ko.PureComputed<boolean>;
-  readonly allowedImageTypes: string;
+  /** MIME types and file extensions are accepted */
+  readonly acceptedImageTypes: string;
   readonly allowedFileTypes: string;
 
   static get CONFIG() {
@@ -130,7 +131,7 @@ export class InputBarViewModel {
   ) {
     this.shadowInput = null;
     this.textarea = null;
-    this.allowedImageTypes = Config.getConfig().ALLOWED_IMAGE_TYPES.join(',');
+    this.acceptedImageTypes = Config.getConfig().ALLOWED_IMAGE_TYPES.join(',');
     this.allowedFileTypes = Config.getConfig().FEATURE.ALLOWED_FILE_UPLOAD_EXTENSIONS.join(',');
 
     this.selectionStart = ko.observable(0);
diff --git a/src/worker/image-worker.js b/src/worker/image-worker.js
index f7a228d3333..b24a0f3d70a 100644
--- a/src/worker/image-worker.js
+++ b/src/worker/image-worker.js
@@ -33,6 +33,7 @@ self.addEventListener('message', (/** @type {MessageEvent<Data>} */ event) => {
     MAX_FILE_SIZE = 1024 * 1024;
   }
 
+  // Unfortunately, Jimp doesn't support MIME type "image/webp": https://github.com/oliver-moran/jimp/issues/144
   Jimp.read(event.data.buffer).then(image => {
     if (event.data.useProfileImageSize) {
       image.cover(MAX_SIZE, MAX_SIZE);