diff --git a/packages/volto/news/6493.bugfix b/packages/volto/news/6493.bugfix
new file mode 100644
index 0000000000..a5e5c9aad3
--- /dev/null
+++ b/packages/volto/news/6493.bugfix
@@ -0,0 +1 @@
+No longer add classes from the query string search text in the `body` tag. @Abhishek-17h
\ No newline at end of file
diff --git a/packages/volto/src/components/theme/App/App.jsx b/packages/volto/src/components/theme/App/App.jsx
index 1c900fefe1..cda1be4085 100644
--- a/packages/volto/src/components/theme/App/App.jsx
+++ b/packages/volto/src/components/theme/App/App.jsx
@@ -146,10 +146,13 @@ export class App extends Component {
               this.props.pathname !== '/',
             siteroot: this.props.pathname === '/',
             [`is-adding-contenttype-${decodeURIComponent(
-              this.props.location?.search?.replace('?type=', ''),
+              this.props.location?.search?.startsWith('?type=')
+                ? this.props.location?.search?.replace('?type=', '')
+                : '',
             )
               .replaceAll(' ', '-')
-              .toLowerCase()}`]: this.props.location?.search,
+              .toLowerCase()}`]:
+              this.props.location?.search?.startsWith('?type='),
             'is-authenticated': !!this.props.token,
             'is-anonymous': !this.props.token,
             'cms-ui': isCmsUI,