Curl-url-file-3a-2f-2f-2f

Implement a strict whitelist of allowed schemes. Reject any URL containing %3A unless properly canonicalized.

"curl-url-file-3A-2F-2F-2F" appears to be a URL-encoded or percent-encoded representation of a string related to curl and a file URL. Breaking it down:

Putting that together, "curl-url-file-3A-2F-2F-2F" decodes to the phrase: curl-url-file:/// curl-url-file-3A-2F-2F-2F

Interpreted meaning:

Notes and caveats:

If you want, I can:

It looks like you’re trying to analyze or generate content about the string: Implement a strict whitelist of allowed schemes

curl-url-file-3A-2F-2F-2F

That string appears to be a URL-encoded or partially encoded representation. Let me break it down. Notes and caveats:

curl file:///absolute/path/to/file

Sometimes curl-url-file-3A-2F-2F-2F appears in:

Example attack payload:
curl "file:///etc/passwd" encoded as curl-url-file-3A-2F-2F-2Fetc-2Fpasswd