diff --git a/src/api/artiste/controllers/__tests__/artiste.test.js b/src/api/artiste/controllers/__tests__/artiste.test.js
index 707c474..dbb6ff8 100644
--- a/src/api/artiste/controllers/__tests__/artiste.test.js
+++ b/src/api/artiste/controllers/__tests__/artiste.test.js
@@ -70,4 +70,22 @@ describe('artiste.create', () => {
     expect(ctx.badRequest).toHaveBeenCalled()
     expect(strapi.documents).not.toHaveBeenCalled()
   })
+
+  it('ignore les champs non autorisés du payload (mass assignment)', async () => {
+    const {strapi, artisteDocuments} = buildStrapi({dbUser})
+    const controller = createController({strapi})
+    const ctx = buildCtx(buildData({
+      isExclusiveArtist: true,
+      userAdmin: {id: 999}
+    }))
+
+    await controller.create(ctx)
+
+    expect(artisteDocuments.create).toHaveBeenCalledWith({
+      data: {
+        alias: 'Test Artist',
+        user: dbUser.id
+      }
+    })
+  })
 })
diff --git a/src/api/artiste/controllers/artiste.js b/src/api/artiste/controllers/artiste.js
index ffa0e5a..bbbaf73 100644
--- a/src/api/artiste/controllers/artiste.js
+++ b/src/api/artiste/controllers/artiste.js
@@ -37,7 +37,8 @@ module.exports = createCoreController('api::artiste.artiste', ({strapi}) => ({
     } else {
       const newArtiste = await strapi.documents('api::artiste.artiste').create({
         data: {
-          ...data
+          alias: data.alias,
+          user: user.id
         }
       })
       return newArtiste
diff --git a/src/api/commentaire/controllers/__tests__/commentaire.test.js b/src/api/commentaire/controllers/__tests__/commentaire.test.js
index bc11da4..41a99a3 100644
--- a/src/api/commentaire/controllers/__tests__/commentaire.test.js
+++ b/src/api/commentaire/controllers/__tests__/commentaire.test.js
@@ -99,4 +99,21 @@ describe('commentaire.create', () => {
     await expect(controller.create(ctx)).rejects.toThrow('Informations manquantes.')
     expect(paroleDbQuery.findOne).not.toHaveBeenCalled()
   })
+
+  it('ignore les champs non autorisés du payload (mass assignment)', async () => {
+    const {strapi, commentaireDocuments} = buildStrapi()
+    const controller = createController({strapi})
+    const ctx = buildCtx(buildData({publishedAt: '2020-01-01'}))
+
+    await controller.create(ctx)
+
+    expect(commentaireDocuments.create).toHaveBeenCalledWith({
+      data: {
+        contenu: 'Un commentaire',
+        datePublication: '2026-07-04',
+        user: dbUser.id,
+        parole: dbParole.id
+      }
+    })
+  })
 })
diff --git a/src/api/commentaire/controllers/commentaire.js b/src/api/commentaire/controllers/commentaire.js
index 8ab2755..b856285 100644
--- a/src/api/commentaire/controllers/commentaire.js
+++ b/src/api/commentaire/controllers/commentaire.js
@@ -24,8 +24,6 @@ module.exports = createCoreController('api::commentaire.commentaire', ({strapi})
       throw new ApplicationError('Informations non valides.')
     }
 
-    data.user = user.id
-
     const parole = await strapi.db.query('api::parole.parole').findOne({
       where: {id: data.parole}
     })
@@ -36,7 +34,10 @@ module.exports = createCoreController('api::commentaire.commentaire', ({strapi})
 
     const newCommentaire = await strapi.documents('api::commentaire.commentaire').create({
       data: {
-        ...data
+        contenu: data.contenu,
+        datePublication: data.datePublication,
+        user: user.id,
+        parole: parole.id
       }
     })
 
diff --git a/src/api/parole/controllers/__tests__/parole.test.js b/src/api/parole/controllers/__tests__/parole.test.js
index 75b7f09..a789456 100644
--- a/src/api/parole/controllers/__tests__/parole.test.js
+++ b/src/api/parole/controllers/__tests__/parole.test.js
@@ -5,7 +5,8 @@ const {default: createController} = await import('../parole.js')
 function buildStrapi({dbUser, artiste}) {
   const paroleDocuments = {
     findMany: vi.fn(async () => []),
-    create: vi.fn(async ({data}) => ({id: 42, ...data}))
+    create: vi.fn(async ({data}) => ({id: 42, ...data})),
+    update: vi.fn(async ({data}) => ({id: 42, ...data}))
   }
   const userDocuments = {
     findOne: vi.fn(async () => dbUser),
@@ -44,7 +45,7 @@ function buildCtx(data) {
 }
 
 const dbUser = {id: 1, documentId: 'user-doc-1', username: 'foo', email: 'foo@bar.com'}
-const artiste = {documentId: 'artiste-doc-1'}
+const artiste = {id: 9, documentId: 'artiste-doc-1'}
 
 function buildData(overrides = {}) {
   return {
@@ -113,4 +114,57 @@ describe('parole.create', () => {
     expect(ctx.badRequest).toHaveBeenCalled()
     expect(artisteDocuments.findOne).not.toHaveBeenCalled()
   })
+
+  it('ignore les champs non autorisés du payload (mass assignment)', async () => {
+    const {strapi, paroleDocuments} = buildStrapi({dbUser, artiste})
+    const controller = createController({strapi})
+    const ctx = buildCtx(buildData({
+      userAdmin: {id: 999},
+      isNewRelease: true,
+      difference: [{fake: true}]
+    }))
+
+    await controller.create(ctx)
+
+    expect(paroleDocuments.create).toHaveBeenCalledWith({
+      data: {
+        titre: 'Test',
+        transcription: 'Paroles...',
+        traductions: undefined,
+        traductionAuto: undefined,
+        artistes: [artiste.id],
+        user: dbUser.id
+      }
+    })
+  })
+})
+
+describe('parole.update', () => {
+  it('ignore les champs non autorisés du payload (mass assignment)', async () => {
+    const {strapi, paroleDocuments} = buildStrapi({dbUser, artiste})
+    const controller = createController({strapi})
+    const ctx = buildCtx({
+      documentId: 'doc-1',
+      titre: 'Nouveau titre',
+      transcription: 'Nouveau texte',
+      traductions: {francais: 'salut'},
+      traductionAuto: true,
+      artistes: [9],
+      userAdmin: {id: 999},
+      user: {id: 999}
+    })
+
+    await controller.update(ctx)
+
+    expect(paroleDocuments.update).toHaveBeenCalledWith({
+      documentId: 'doc-1',
+      data: {
+        titre: 'Nouveau titre',
+        transcription: 'Nouveau texte',
+        traductions: {francais: 'salut'},
+        traductionAuto: true,
+        artistes: [9]
+      }
+    })
+  })
 })
diff --git a/src/api/parole/controllers/parole.js b/src/api/parole/controllers/parole.js
index bc3a1cd..264cd5b 100644
--- a/src/api/parole/controllers/parole.js
+++ b/src/api/parole/controllers/parole.js
@@ -61,7 +61,11 @@ module.exports = createCoreController('api::parole.parole', ({strapi}) => ({
       documentId: data.documentId,
 
       data: {
-        ...data
+        titre: data.titre,
+        transcription: data.transcription,
+        traductions: data.traductions,
+        traductionAuto: data.traductionAuto,
+        artistes: data.artistes
       }
     })
 
@@ -119,7 +123,12 @@ module.exports = createCoreController('api::parole.parole', ({strapi}) => ({
 
     const newParole = await strapi.documents('api::parole.parole').create({
       data: {
-        ...data
+        titre: data.titre,
+        transcription: data.transcription,
+        traductions: data.traductions,
+        traductionAuto: data.traductionAuto,
+        artistes: [artiste.id],
+        user: user.id
       }
     })