Merge pull request #10165 from Matsue/update-polyfill-io-severity

Update severity of polyfill-backdoor to high

http/vulnerabilities/backdoor/polyfill-backdoor.yaml

@@ -1,9 +1,9 @@
 id: polyfill-backdoor
 
 info:
-  name: Polyfill.io - Detection
+  name: Polyfill.io - Backdoor
   author: kazet
-  severity: low
+  severity: high
   description: |
     The polyfill.io CDN was suspected to serve malware.
   reference:
@@ -30,4 +30,4 @@ http:
         part: body
         regex:
           - "<script[^>]* src=['\"]https?://([a-zA-Z0-9-]*.)?polyfill.io[/'\"]"
-# digest: 4a0a0047304502202741c6e8841c555d7c41536c7eccafe5207519fdbe69a21a76d09728e190bc5d022100ac5f13bcb311fa2091c545e60acfa5a45f6b000cdf5e4fd5a46f76d0632f4575:922c64590222798bb761d5b6d8e72950
+# digest: 4a0a0047304502202741c6e8841c555d7c41536c7eccafe5207519fdbe69a21a76d09728e190bc5d022100ac5f13bcb311fa2091c545e60acfa5a45f6b000cdf5e4fd5a46f76d0632f4575:922c64590222798bb761d5b6d8e72950