diff --git a/apps/server/src/modules/news/controller/dto/create-news.params.ts b/apps/server/src/modules/news/controller/dto/create-news.params.ts
index 6bc1d3049e5..e54ab40be2b 100644
--- a/apps/server/src/modules/news/controller/dto/create-news.params.ts
+++ b/apps/server/src/modules/news/controller/dto/create-news.params.ts
@@ -15,8 +15,7 @@ export class CreateNewsParams {
 	title!: string;
 
 	@IsString()
-	// TODO add correct validation for input format
-	@SanitizeHtml(InputFormat.RICH_TEXT)
+	@SanitizeHtml(InputFormat.RICH_TEXT_CK5_SIMPLE)
 	@ApiProperty({
 		description: 'Content of the News entity',
 	})
diff --git a/apps/server/src/modules/news/controller/dto/update-news.params.ts b/apps/server/src/modules/news/controller/dto/update-news.params.ts
index f91b26eb46d..9489702524a 100644
--- a/apps/server/src/modules/news/controller/dto/update-news.params.ts
+++ b/apps/server/src/modules/news/controller/dto/update-news.params.ts
@@ -18,7 +18,7 @@ export class UpdateNewsParams {
 
 	@IsOptional()
 	@IsString()
-	@SanitizeHtml(InputFormat.RICH_TEXT)
+	@SanitizeHtml(InputFormat.RICH_TEXT_CK5_SIMPLE)
 	@ApiPropertyOptional({
 		description: 'Content of the News entity',
 	})
diff --git a/apps/server/src/shared/controller/transformer/sanitize-html.transformer.spec.ts b/apps/server/src/shared/controller/transformer/sanitize-html.transformer.spec.ts
index 75502ded02b..da850a7d78e 100644
--- a/apps/server/src/shared/controller/transformer/sanitize-html.transformer.spec.ts
+++ b/apps/server/src/shared/controller/transformer/sanitize-html.transformer.spec.ts
@@ -12,20 +12,17 @@ describe('SanitizeHtmlTransformer Decorator', () => {
 		@SanitizeHtml(InputFormat.PLAIN_TEXT)
 		title2!: string;
 
-		@SanitizeHtml(InputFormat.RICH_TEXT_SIMPLE)
+		@SanitizeHtml(InputFormat.PLAIN_TEXT)
 		excerpt?: string;
 
-		@SanitizeHtml(InputFormat.RICH_TEXT)
-		content!: string;
-
 		@SanitizeHtml(InputFormat.RICH_TEXT_CK5)
 		contentCk5!: string;
 
-		@SanitizeHtml(InputFormat.RICH_TEXT_CK5_SIMPLE)
-		contentCk5Simple!: string;
-
 		@SanitizeHtml(InputFormat.RICH_TEXT_CK4)
 		contentCk4!: string;
+
+		@SanitizeHtml(InputFormat.RICH_TEXT_CK5_SIMPLE)
+		contentRichTextCk5Simple!: string;
 	}
 
 	describe('when fully sanitizing an input string', () => {
@@ -40,22 +37,6 @@ describe('SanitizeHtmlTransformer Decorator', () => {
 		});
 	});
 
-	describe('when sanitizing inline formatting', () => {
-		it('should remove all html but inline tags', () => {
-			const plainString = { excerpt: '<h1><b>html text</b></h1>' };
-			const instance = plainToClass(WithHtmlDto, plainString);
-			expect(instance.excerpt).toEqual('<b>html text</b>');
-		});
-	});
-
-	describe('when sanitizing rich text formatting', () => {
-		it('should remove all html but rich text tags', () => {
-			const plainString = { content: '<h1><b>html text</b></h1><scriPT>alert("foobar");</sCript><stYle></style>' };
-			const instance = plainToClass(WithHtmlDto, plainString);
-			expect(instance.content).toEqual('<h1><b>html text</b></h1>');
-		});
-	});
-
 	describe('when sanitizing rich text ck5 formatting', () => {
 		it('should remove all html but rich text ck5 tags', () => {
 			const plainString = {
@@ -69,22 +50,26 @@ describe('SanitizeHtmlTransformer Decorator', () => {
 		});
 	});
 
-	describe('when sanitizing rich text ck5 simple formatting', () => {
-		it('should remove all html but rich text ck5 simple tags', () => {
+	describe('when sanitizing rich text ck4 formatting', () => {
+		it('should remove all html but rich text ck4 tags', () => {
 			const plainString = {
-				contentCk5Simple:
-					'<p><b>strong</b><br />text</p><h2></h2><scriPT>alert("foobar");</sCript><stYle></style><img src="some.png" />',
+				contentCk4: '<h1><b>html text</b></h1><scriPT>alert("foobar");</sCript><stYle></style><a href></a>',
 			};
 			const instance = plainToClass(WithHtmlDto, plainString);
-			expect(instance.contentCk5Simple).toEqual('<p><b>strong</b><br />text</p>');
+			expect(instance.contentCk4).toEqual('<h1><b>html text</b></h1><a href></a>');
 		});
 	});
 
-	describe('when sanitizing rich text ck4 formatting', () => {
-		it('should remove all html but rich text ck4 tags', () => {
-			const plainString = { contentCk4: '<h1><b>html text</b></h1><scriPT>alert("foobar");</sCript><stYle></style>' };
+	describe('when sanitizing rich text Ck5 simple formatting', () => {
+		it('should remove all html but rich text ck5 simple tags', () => {
+			const plainString = {
+				contentRichTextCk5Simple:
+					'<h1></h1><h2><b><mark>html <h4>text</h4></mark></b></h2><span class="math-tex">[x=\frac{-bpmsqrt{b^2-4ac}}{2a}]</span><scriPT>alert("foobar");</sCript><stYle></style><img src="some.png" />',
+			};
 			const instance = plainToClass(WithHtmlDto, plainString);
-			expect(instance.contentCk4).toEqual('<h1><b>html text</b></h1>');
+			expect(instance.contentRichTextCk5Simple).toEqual(
+				'<h2>html <h4>text</h4></h2>[x=rac{-bpmsqrt{b^2-4ac}}{2a}]<img src="some.png" />'
+			);
 		});
 	});
 
diff --git a/apps/server/src/shared/controller/transformer/sanitize-html.transformer.ts b/apps/server/src/shared/controller/transformer/sanitize-html.transformer.ts
index 31c137b32b4..d455422c93a 100644
--- a/apps/server/src/shared/controller/transformer/sanitize-html.transformer.ts
+++ b/apps/server/src/shared/controller/transformer/sanitize-html.transformer.ts
@@ -14,55 +14,6 @@ const inputFormatsSanitizeConfig: Record<string, IInputFormatsConfig> = {
 		allowedAttributes: {},
 	},
 
-	RichTextSimple: {
-		allowedTags: ['b', 'i', 'em', 'strong', 'small', 's', 'u'],
-		allowedAttributes: {},
-	},
-
-	RichText: {
-		allowedTags: [
-			'b',
-			'i',
-			'em',
-			'strong',
-			'small',
-			's',
-			'u',
-			'h1',
-			'h2',
-			'h3',
-			'h4',
-			'h5',
-			'h6',
-			'ul',
-			'li',
-			'ol',
-			'dl',
-			'dt',
-			'dd',
-			'p',
-			'pre',
-			'br',
-			'hr',
-			'table',
-			'tbody',
-			'td',
-			'tfoot',
-			'th',
-			'thead',
-			'tr',
-			'tr',
-			'td',
-			'a',
-			'img',
-		],
-		allowedAttributes: {
-			a: ['href', 'name', 'target'],
-			img: ['src', 'srcset', 'alt', 'title', 'width', 'height', 'loading'],
-		},
-	},
-
-	// TODO
 	RichTextCk4: {
 		allowedTags: [
 			'b',
@@ -146,23 +97,21 @@ const inputFormatsSanitizeConfig: Record<string, IInputFormatsConfig> = {
 	},
 
 	RichTextCk5Simple: {
-		allowedTags: ['p', 'br', 'b', 'strong', 'i', 'em', 'u'],
-		allowedAttributes: {},
+		allowedTags: ['p', 'br', 'strong', 'em', 'u', 's', 'h2', 'h3', 'h4', 'ul', 'ol', 'li', 'img', 'src'],
+		allowedAttributes: {
+			img: ['src', 'srcset', 'alt', 'title', 'width', 'height', 'loading'],
+		},
 	},
 };
 
 export const getSanitizeHtmlOptions = (inputFormat?: InputFormat): IInputFormatsConfig => {
 	switch (inputFormat) {
-		case InputFormat.RICH_TEXT_SIMPLE:
-			return inputFormatsSanitizeConfig.RichTextSimple;
-		case InputFormat.RICH_TEXT:
-			return inputFormatsSanitizeConfig.RichText;
+		case InputFormat.RICH_TEXT_CK5_SIMPLE:
+			return inputFormatsSanitizeConfig.RichTextCk5Simple;
 		case InputFormat.RICH_TEXT_CK4:
 			return inputFormatsSanitizeConfig.RichTextCk4;
 		case InputFormat.RICH_TEXT_CK5:
 			return inputFormatsSanitizeConfig.RichTextCk5;
-		case InputFormat.RICH_TEXT_CK5_SIMPLE:
-			return inputFormatsSanitizeConfig.RichTextCk5Simple;
 		case InputFormat.PLAIN_TEXT:
 		default:
 			return inputFormatsSanitizeConfig.PlainText;
diff --git a/apps/server/src/shared/domain/types/input-format.types.ts b/apps/server/src/shared/domain/types/input-format.types.ts
index 54ed008d218..b43278557b5 100644
--- a/apps/server/src/shared/domain/types/input-format.types.ts
+++ b/apps/server/src/shared/domain/types/input-format.types.ts
@@ -1,8 +1,6 @@
 export enum InputFormat {
 	PLAIN_TEXT = 'plainText',
-	RICH_TEXT = 'richText',
-	RICH_TEXT_SIMPLE = 'inline',
+	RICH_TEXT_CK5_SIMPLE = 'richTextCk5Simple',
 	RICH_TEXT_CK4 = 'richTextCk4',
 	RICH_TEXT_CK5 = 'richTextCk5',
-	RICH_TEXT_CK5_SIMPLE = 'richTextCk5Inline',
 }