diff --git a/2018/20xxx/CVE-2018-20450.json b/2018/20xxx/CVE-2018-20450.json
new file mode 100644
index 00000000000..20eda104f6b
--- /dev/null
+++ b/2018/20xxx/CVE-2018-20450.json
@@ -0,0 +1,62 @@
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+            "name" : "https://github.com/evanmiller/libxls/issues/34",
+            "refsource" : "MISC",
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+         }
+      ]
+   }
+}
diff --git a/2018/20xxx/CVE-2018-20451.json b/2018/20xxx/CVE-2018-20451.json
new file mode 100644
index 00000000000..f911a019b7b
--- /dev/null
+++ b/2018/20xxx/CVE-2018-20451.json
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+   "references" : {
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+            "name" : "https://github.com/uvoteam/libdoc/issues/2",
+            "refsource" : "MISC",
+            "url" : "https://github.com/uvoteam/libdoc/issues/2"
+         }
+      ]
+   }
+}
diff --git a/2018/20xxx/CVE-2018-20452.json b/2018/20xxx/CVE-2018-20452.json
new file mode 100644
index 00000000000..5970ea08513
--- /dev/null
+++ b/2018/20xxx/CVE-2018-20452.json
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diff --git a/2018/20xxx/CVE-2018-20453.json b/2018/20xxx/CVE-2018-20453.json
new file mode 100644
index 00000000000..eacd8ab67fe
--- /dev/null
+++ b/2018/20xxx/CVE-2018-20453.json
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+            "value" : "The getlong function in numutils.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file."
+         }
+      ]
+   },
+   "problemtype" : {
+      "problemtype_data" : [
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+      ]
+   },
+   "references" : {
+      "reference_data" : [
+         {
+            "name" : "https://github.com/uvoteam/libdoc/issues/1",
+            "refsource" : "MISC",
+            "url" : "https://github.com/uvoteam/libdoc/issues/1"
+         }
+      ]
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diff --git a/2018/20xxx/CVE-2018-20454.json b/2018/20xxx/CVE-2018-20454.json
new file mode 100644
index 00000000000..9d4771fb30b
--- /dev/null
+++ b/2018/20xxx/CVE-2018-20454.json
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+            "value" : "An issue was discovered in 74cms v4.2.111. upload/index.php?c=resume&a=resume_list has XSS via the key parameter."
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