diff --git a/src/App.vue b/src/App.vue
index 380c56467..02ce9bec0 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -71,12 +71,20 @@ export default {
     }
 
     this.axios.interceptors.response.use(null, (error) => {
-      // On error status codes (4xx - 5xx), display a toast with the HTTP status code and text.
+      // On error status codes (4xx - 5xx), display a toast with either:
+      //  * The problem title and detail in case of an RFC 9457 response
+      //  * the HTTP status code and text
       if (error.response.status >= 400 && error.response.status < 500) {
-        this.$toastr.e(
-          error.response.statusText + ' (' + error.response.status + ')',
-          this.$t('condition.http_request_error'),
-        );
+        if (
+          error.response.headers['content-type'] === 'application/problem+json'
+        ) {
+          this.$toastr.w(error.response.data.detail, error.response.data.title);
+        } else {
+          this.$toastr.e(
+            error.response.statusText + ' (' + error.response.status + ')',
+            this.$t('condition.http_request_error'),
+          );
+        }
       } else {
         this.$toastr.e(
           error.response.statusText + ' (' + error.response.status + ')',
diff --git a/src/views/portfolio/projects/ProjectUploadBomModal.vue b/src/views/portfolio/projects/ProjectUploadBomModal.vue
index abdb1675c..c22177f1b 100644
--- a/src/views/portfolio/projects/ProjectUploadBomModal.vue
+++ b/src/views/portfolio/projects/ProjectUploadBomModal.vue
@@ -57,15 +57,10 @@ export default {
         },
       };
       let url = `${this.$api.BASE_URL}/${this.$api.URL_BOM}`;
-      this.axios
-        .post(url, data, config)
-        .then((response) => {
-          this.$root.$emit('bv::hide::modal', 'projectUploadBomModal');
-          this.$toastr.s(this.$t('message.bom_uploaded'));
-        })
-        .catch((error) => {
-          this.$toastr.w(this.$t('condition.unsuccessful_action'));
-        });
+      this.axios.post(url, data, config).then(() => {
+        this.$root.$emit('bv::hide::modal', 'projectUploadBomModal');
+        this.$toastr.s(this.$t('message.bom_uploaded'));
+      });
     },
   },
 };
diff --git a/src/views/portfolio/projects/ProjectUploadVexModal.vue b/src/views/portfolio/projects/ProjectUploadVexModal.vue
index 8066d9e26..189888e0f 100644
--- a/src/views/portfolio/projects/ProjectUploadVexModal.vue
+++ b/src/views/portfolio/projects/ProjectUploadVexModal.vue
@@ -57,15 +57,10 @@ export default {
         },
       };
       let url = `${this.$api.BASE_URL}/${this.$api.URL_VEX}`;
-      this.axios
-        .post(url, data, config)
-        .then((response) => {
-          this.$root.$emit('bv::hide::modal', 'projectUploadVexModal');
-          this.$toastr.s(this.$t('message.vex_uploaded'));
-        })
-        .catch((error) => {
-          this.$toastr.w(this.$t('condition.unsuccessful_action'));
-        });
+      this.axios.post(url, data, config).then(() => {
+        this.$root.$emit('bv::hide::modal', 'projectUploadVexModal');
+        this.$toastr.s(this.$t('message.vex_uploaded'));
+      });
     },
   },
 };