diff --git a/src/auth/auth-token.dto.ts b/src/auth/auth-token.dto.ts
index 9f00fb33f..f175f8a90 100644
--- a/src/auth/auth-token.dto.ts
+++ b/src/auth/auth-token.dto.ts
@@ -1,11 +1,13 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { IsDate, IsOptional, IsString } from 'class-validator';
 
-export class AuthTokenDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class AuthTokenDto extends BaseDto {
   @IsString()
   label: string;
   @IsString()
diff --git a/src/frontend-config/frontend-config.dto.ts b/src/frontend-config/frontend-config.dto.ts
index 1e2c86d73..78afde0ed 100644
--- a/src/frontend-config/frontend-config.dto.ts
+++ b/src/frontend-config/frontend-config.dto.ts
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
@@ -15,6 +15,7 @@ import {
 import { URL } from 'url';
 
 import { ServerVersion } from '../monitoring/server-status.dto';
+import { BaseDto } from '../utils/base.dto.';
 
 export enum AuthProviderType {
   LOCAL = 'local',
@@ -43,7 +44,7 @@ export type AuthProviderTypeWithoutCustomName =
   | AuthProviderType.DROPBOX
   | AuthProviderType.GOOGLE;
 
-export class AuthProviderWithoutCustomNameDto {
+export class AuthProviderWithoutCustomNameDto extends BaseDto {
   /**
    * The type of the auth provider.
    */
@@ -51,7 +52,7 @@ export class AuthProviderWithoutCustomNameDto {
   type: AuthProviderTypeWithoutCustomName;
 }
 
-export class AuthProviderWithCustomNameDto {
+export class AuthProviderWithCustomNameDto extends BaseDto {
   /**
    * The type of the auth provider.
    */
@@ -77,7 +78,7 @@ export type AuthProviderDto =
   | AuthProviderWithCustomNameDto
   | AuthProviderWithoutCustomNameDto;
 
-export class BrandingDto {
+export class BrandingDto extends BaseDto {
   /**
    * The name to be displayed next to the HedgeDoc logo
    * @example ACME Corp
@@ -95,7 +96,7 @@ export class BrandingDto {
   logo?: URL;
 }
 
-export class SpecialUrlsDto {
+export class SpecialUrlsDto extends BaseDto {
   /**
    * A link to the privacy notice
    * @example https://md.example.com/n/privacy
@@ -121,7 +122,7 @@ export class SpecialUrlsDto {
   imprint?: URL;
 }
 
-export class IframeCommunicationDto {
+export class IframeCommunicationDto extends BaseDto {
   /**
    * The origin under which the editor page will be served
    * @example https://md.example.com
@@ -139,7 +140,7 @@ export class IframeCommunicationDto {
   rendererOrigin?: URL;
 }
 
-export class FrontendConfigDto {
+export class FrontendConfigDto extends BaseDto {
   /**
    * Is anonymous usage of the instance allowed?
    */
diff --git a/src/groups/group-info.dto.ts b/src/groups/group-info.dto.ts
index 3e2a12830..f2ea39672 100644
--- a/src/groups/group-info.dto.ts
+++ b/src/groups/group-info.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsBoolean, IsString } from 'class-validator';
 
-export class GroupInfoDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class GroupInfoDto extends BaseDto {
   /**
    * Name of the group
    * @example "superheroes"
diff --git a/src/history/history-entry-import.dto.ts b/src/history/history-entry-import.dto.ts
index c89a86e4d..71d99e6be 100644
--- a/src/history/history-entry-import.dto.ts
+++ b/src/history/history-entry-import.dto.ts
@@ -1,11 +1,13 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { IsBoolean, IsDate, IsString } from 'class-validator';
 
-export class HistoryEntryImportDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class HistoryEntryImportDto extends BaseDto {
   /**
    * ID or Alias of the note
    */
diff --git a/src/history/history-entry-update.dto.ts b/src/history/history-entry-update.dto.ts
index 76cb4d221..fe0457dd5 100644
--- a/src/history/history-entry-update.dto.ts
+++ b/src/history/history-entry-update.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsBoolean } from 'class-validator';
 
-export class HistoryEntryUpdateDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class HistoryEntryUpdateDto extends BaseDto {
   /**
    * True if the note should be pinned
    */
diff --git a/src/history/history-entry.dto.ts b/src/history/history-entry.dto.ts
index eeaf24d75..4e9f098c5 100644
--- a/src/history/history-entry.dto.ts
+++ b/src/history/history-entry.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsArray, IsBoolean, IsDate, IsString } from 'class-validator';
 
-export class HistoryEntryDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class HistoryEntryDto extends BaseDto {
   /**
    * ID or Alias of the note
    */
diff --git a/src/media/media-upload-url.dto.ts b/src/media/media-upload-url.dto.ts
index d5e420a04..47a1e2a78 100644
--- a/src/media/media-upload-url.dto.ts
+++ b/src/media/media-upload-url.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsString } from 'class-validator';
 
-export class MediaUploadUrlDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class MediaUploadUrlDto extends BaseDto {
   @IsString()
   @ApiProperty()
   link: string;
diff --git a/src/media/media-upload.dto.ts b/src/media/media-upload.dto.ts
index ff9370226..7e38a7a16 100644
--- a/src/media/media-upload.dto.ts
+++ b/src/media/media-upload.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsDate, IsOptional, IsString } from 'class-validator';
 
-export class MediaUploadDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class MediaUploadDto extends BaseDto {
   /**
    * The link to the media file.
    * @example "https://example.com/uploads/testfile123.jpg"
diff --git a/src/monitoring/server-status.dto.ts b/src/monitoring/server-status.dto.ts
index de94fefdb..541fe7bc7 100644
--- a/src/monitoring/server-status.dto.ts
+++ b/src/monitoring/server-status.dto.ts
@@ -1,10 +1,12 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 
+import { BaseDto } from '../utils/base.dto.';
+
 export class ServerVersion {
   @ApiProperty()
   major: number;
@@ -18,7 +20,7 @@ export class ServerVersion {
   commit?: string;
 }
 
-export class ServerStatusDto {
+export class ServerStatusDto extends BaseDto {
   @ApiProperty()
   serverVersion: ServerVersion;
   @ApiProperty()
diff --git a/src/notes/alias-create.dto.ts b/src/notes/alias-create.dto.ts
index 2da4dd841..6c04f4604 100644
--- a/src/notes/alias-create.dto.ts
+++ b/src/notes/alias-create.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsString } from 'class-validator';
 
-export class AliasCreateDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class AliasCreateDto extends BaseDto {
   /**
    * The note id or alias, which identifies the note the alias should be added to
    */
diff --git a/src/notes/alias-update.dto.ts b/src/notes/alias-update.dto.ts
index 318c86680..6ce7bf330 100644
--- a/src/notes/alias-update.dto.ts
+++ b/src/notes/alias-update.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsBoolean } from 'class-validator';
 
-export class AliasUpdateDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class AliasUpdateDto extends BaseDto {
   /**
    * Whether the alias should become the primary alias or not
    */
diff --git a/src/notes/alias.dto.ts b/src/notes/alias.dto.ts
index dccaddc23..1f5c2af29 100644
--- a/src/notes/alias.dto.ts
+++ b/src/notes/alias.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsBoolean, IsString } from 'class-validator';
 
-export class AliasDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class AliasDto extends BaseDto {
   /**
    * The name of the alias
    */
diff --git a/src/notes/note-metadata.dto.ts b/src/notes/note-metadata.dto.ts
index 46251c9df..f76859e43 100644
--- a/src/notes/note-metadata.dto.ts
+++ b/src/notes/note-metadata.dto.ts
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
@@ -14,9 +14,10 @@ import {
 } from 'class-validator';
 
 import { UserInfoDto } from '../users/user-info.dto';
+import { BaseDto } from '../utils/base.dto.';
 import { NotePermissionsDto } from './note-permissions.dto';
 
-export class NoteMetadataDto {
+export class NoteMetadataDto extends BaseDto {
   /**
    * ID of the note
    */
diff --git a/src/notes/note-permissions.dto.ts b/src/notes/note-permissions.dto.ts
index e2d0efdad..4626d2ddb 100644
--- a/src/notes/note-permissions.dto.ts
+++ b/src/notes/note-permissions.dto.ts
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
@@ -12,7 +12,9 @@ import {
   ValidateNested,
 } from 'class-validator';
 
-export class NoteUserPermissionEntryDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class NoteUserPermissionEntryDto extends BaseDto {
   /**
    * Username of the User this permission applies to
    */
diff --git a/src/notes/note.dto.ts b/src/notes/note.dto.ts
index 68784e8b1..2a988e93c 100644
--- a/src/notes/note.dto.ts
+++ b/src/notes/note.dto.ts
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
@@ -7,9 +7,10 @@ import { ApiProperty } from '@nestjs/swagger';
 import { IsArray, IsString, ValidateNested } from 'class-validator';
 
 import { EditDto } from '../revisions/edit.dto';
+import { BaseDto } from '../utils/base.dto.';
 import { NoteMetadataDto } from './note-metadata.dto';
 
-export class NoteDto {
+export class NoteDto extends BaseDto {
   /**
    * Markdown content of the note
    * @example "# I am a heading"
diff --git a/src/notes/note.media-deletion.dto.ts b/src/notes/note.media-deletion.dto.ts
index aebbea277..1d8eaa184 100644
--- a/src/notes/note.media-deletion.dto.ts
+++ b/src/notes/note.media-deletion.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsBoolean } from 'class-validator';
 
-export class NoteMediaDeletionDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class NoteMediaDeletionDto extends BaseDto {
   /**
    * Should the associated mediaUploads be keept
    * @default false
diff --git a/src/revisions/edit.dto.ts b/src/revisions/edit.dto.ts
index 3a0cc49ba..5b4ab4c43 100644
--- a/src/revisions/edit.dto.ts
+++ b/src/revisions/edit.dto.ts
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
@@ -7,8 +7,9 @@ import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
 import { IsDate, IsNumber, IsOptional, IsString, Min } from 'class-validator';
 
 import { UserInfoDto } from '../users/user-info.dto';
+import { BaseDto } from '../utils/base.dto.';
 
-export class EditDto {
+export class EditDto extends BaseDto {
   /**
    * Username of the user who authored this section
    * Is `null` if the user is anonymous
diff --git a/src/revisions/revision.dto.ts b/src/revisions/revision.dto.ts
index e4d968c39..ad84365e5 100644
--- a/src/revisions/revision.dto.ts
+++ b/src/revisions/revision.dto.ts
@@ -1,14 +1,15 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsDate, IsNumber, IsString } from 'class-validator';
 
+import { BaseDto } from '../utils/base.dto.';
 import { Revision } from './revision.entity';
 
-export class RevisionDto {
+export class RevisionDto extends BaseDto {
   /**
    * ID of this revision
    * @example 13
diff --git a/src/users/user-info.dto.ts b/src/users/user-info.dto.ts
index 906590970..5fc2eb0db 100644
--- a/src/users/user-info.dto.ts
+++ b/src/users/user-info.dto.ts
@@ -1,12 +1,14 @@
 /*
- * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
  *
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 import { ApiProperty } from '@nestjs/swagger';
 import { IsString } from 'class-validator';
 
-export class UserInfoDto {
+import { BaseDto } from '../utils/base.dto.';
+
+export class UserInfoDto extends BaseDto {
   /**
    * The username
    * @example "john.smith"
diff --git a/src/utils/base.dto..ts b/src/utils/base.dto..ts
new file mode 100644
index 000000000..fb98b88ee
--- /dev/null
+++ b/src/utils/base.dto..ts
@@ -0,0 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+/**
+ * The base class for all DTOs.
+ */
+export abstract class BaseDto {}