diff --git a/2021/27xxx/CVE-2021-27839.json b/2021/27xxx/CVE-2021-27839.json
index 462cd53ddc9..a2b823e85cd 100644
--- a/2021/27xxx/CVE-2021-27839.json
+++ b/2021/27xxx/CVE-2021-27839.json
@@ -1,17 +1,66 @@
 {
-    "data_type": "CVE",
-    "data_format": "MITRE",
-    "data_version": "4.0",
     "CVE_data_meta": {
-        "ID": "CVE-2021-27839",
         "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "ID": "CVE-2021-27839",
+        "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": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+                "value": "A CSV injection vulnerability found in Online Invoicing System (OIS) 4.3 and below can be exploited by users to perform malicious actions such as redirecting admins to unknown or harmful websites, or disclosing other clients' details that the user did not have access to."
+            }
+        ]
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "n/a"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "url": "https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.4",
+                "refsource": "MISC",
+                "name": "https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.4"
+            },
+            {
+                "url": "https://www.jinsonvarghese.com/csv-injection-in-online-invoicing-system/",
+                "refsource": "MISC",
+                "name": "https://www.jinsonvarghese.com/csv-injection-in-online-invoicing-system/"
             }
         ]
     }
diff --git a/2021/27xxx/CVE-2021-27928.json b/2021/27xxx/CVE-2021-27928.json
new file mode 100644
index 00000000000..d44bedd7d63
--- /dev/null
+++ b/2021/27xxx/CVE-2021-27928.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-27928",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file
diff --git a/2021/27xxx/CVE-2021-27929.json b/2021/27xxx/CVE-2021-27929.json
new file mode 100644
index 00000000000..5be4e2eef5f
--- /dev/null
+++ b/2021/27xxx/CVE-2021-27929.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-27929",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file
diff --git a/2021/27xxx/CVE-2021-27930.json b/2021/27xxx/CVE-2021-27930.json
new file mode 100644
index 00000000000..05d4e87069d
--- /dev/null
+++ b/2021/27xxx/CVE-2021-27930.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-27930",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file
diff --git a/2021/27xxx/CVE-2021-27931.json b/2021/27xxx/CVE-2021-27931.json
new file mode 100644
index 00000000000..f0796d51fbc
--- /dev/null
+++ b/2021/27xxx/CVE-2021-27931.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-27931",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file
diff --git a/2021/27xxx/CVE-2021-27932.json b/2021/27xxx/CVE-2021-27932.json
new file mode 100644
index 00000000000..94ef4fb5f01
--- /dev/null
+++ b/2021/27xxx/CVE-2021-27932.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-27932",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file
diff --git a/2021/27xxx/CVE-2021-27933.json b/2021/27xxx/CVE-2021-27933.json
new file mode 100644
index 00000000000..9ca9778ff5d
--- /dev/null
+++ b/2021/27xxx/CVE-2021-27933.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-27933",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file