2 files changed, 8 insertions, 5 deletions

diff --git a/server/middlewares/validators/plugins.ts b/server/middlewares/validators/plugins.ts
index 2cb49ec43..cba261dc0 100644
--- a/server/middlewares/validators/plugins.ts
+++ b/server/middlewares/validators/plugins.ts
@@ -4,7 +4,7 @@ import { logger } from '../../helpers/logger'
 import { areValidationErrors } from './utils'
 import { isNpmPluginNameValid, isPluginNameValid, isPluginTypeValid, isPluginVersionValid } from '../../helpers/custom-validators/plugins'
 import { PluginManager } from '../../lib/plugins/plugin-manager'
-import { isBooleanValid, isSafePath, toBooleanOrNull, exists } from '../../helpers/custom-validators/misc'
+import { isBooleanValid, isSafePath, toBooleanOrNull, exists, toIntOrNull } from '../../helpers/custom-validators/misc'
 import { PluginModel } from '../../models/server/plugin'
 import { InstallOrUpdatePlugin } from '../../../shared/models/plugins/install-plugin.model'
 import { PluginType } from '../../../shared/models/plugins/plugin.type'
@@ -75,6 +75,7 @@ const pluginStaticDirectoryValidator = [
 const listPluginsValidator = [
   query('pluginType')
     .optional()
+    .customSanitizer(toIntOrNull)
     .custom(isPluginTypeValid).withMessage('Should have a valid plugin type'),
   query('uninstalled')
     .optional()
@@ -165,6 +166,7 @@ const listAvailablePluginsValidator = [
     .exists().withMessage('Should have a valid search'),
   query('pluginType')
     .optional()
+    .customSanitizer(toIntOrNull)
     .custom(isPluginTypeValid).withMessage('Should have a valid plugin type'),
   query('currentPeerTubeEngine')
     .optional()
diff --git a/server/middlewares/validators/videos/video-blacklist.ts b/server/middlewares/validators/videos/video-blacklist.ts
index 4bd6a8333..808fefc25 100644
--- a/server/middlewares/validators/videos/video-blacklist.ts
+++ b/server/middlewares/validators/videos/video-blacklist.ts
@@ -1,10 +1,10 @@
 import * as express from 'express'
 import { body, param, query } from 'express-validator'
-import { isBooleanValid, isIdOrUUIDValid, toBooleanOrNull } from '../../../helpers/custom-validators/misc'
-import { logger } from '../../../helpers/logger'
-import { areValidationErrors } from '../utils'
+import { isBooleanValid, isIdOrUUIDValid, toBooleanOrNull, toIntOrNull } from '../../../helpers/custom-validators/misc'
 import { isVideoBlacklistReasonValid, isVideoBlacklistTypeValid } from '../../../helpers/custom-validators/video-blacklist'
+import { logger } from '../../../helpers/logger'
 import { doesVideoBlacklistExist, doesVideoExist } from '../../../helpers/middlewares'
+import { areValidationErrors } from '../utils'
 
 const videosBlacklistRemoveValidator = [
   param('videoId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid videoId'),
@@ -67,7 +67,8 @@ const videosBlacklistUpdateValidator = [
 
 const videosBlacklistFiltersValidator = [
   query('type')
-    .optional()
+  .optional()
+    .customSanitizer(toIntOrNull)
     .custom(isVideoBlacklistTypeValid).withMessage('Should have a valid video blacklist type attribute'),
   query('search')
     .optional()