diff --git a/2018/12xxx/CVE-2018-12421.json b/2018/12xxx/CVE-2018-12421.json
new file mode 100644
index 00000000000..5343530363f
--- /dev/null
+++ b/2018/12xxx/CVE-2018-12421.json
@@ -0,0 +1,72 @@
+{
+   "CVE_data_meta" : {
+      "ASSIGNER" : "cve@mitre.org",
+      "ID" : "CVE-2018-12421",
+      "STATE" : "PUBLIC"
+   },
+   "affects" : {
+      "vendor" : {
+         "vendor_data" : [
+            {
+               "product" : {
+                  "product_data" : [
+                     {
+                        "product_name" : "n/a",
+                        "version" : {
+                           "version_data" : [
+                              {
+                                 "version_value" : "n/a"
+                              }
+                           ]
+                        }
+                     }
+                  ]
+               },
+               "vendor_name" : "n/a"
+            }
+         ]
+      }
+   },
+   "data_format" : "MITRE",
+   "data_type" : "CVE",
+   "data_version" : "4.0",
+   "description" : {
+      "description_data" : [
+         {
+            "lang" : "eng",
+            "value" : "LTB (aka LDAP Tool Box) Self Service Password before 1.3 allows a change to a user password (without knowing the old password) via a crafted POST request, because the ldap_bind return value is mishandled and the PHP data type is not constrained to be a string."
+         }
+      ]
+   },
+   "problemtype" : {
+      "problemtype_data" : [
+         {
+            "description" : [
+               {
+                  "lang" : "eng",
+                  "value" : "n/a"
+               }
+            ]
+         }
+      ]
+   },
+   "references" : {
+      "reference_data" : [
+         {
+            "name" : "https://github.com/ltb-project/self-service-password/issues/209",
+            "refsource" : "MISC",
+            "url" : "https://github.com/ltb-project/self-service-password/issues/209"
+         },
+         {
+            "name" : "https://github.com/ltb-project/self-service-password/issues/211",
+            "refsource" : "MISC",
+            "url" : "https://github.com/ltb-project/self-service-password/issues/211"
+         },
+         {
+            "name" : "https://lists.ltb-project.org/pipermail/ltb-announce/2018-June/000023.html",
+            "refsource" : "MISC",
+            "url" : "https://lists.ltb-project.org/pipermail/ltb-announce/2018-June/000023.html"
+         }
+      ]
+   }
+}