How to upload pdf in edu gov sites?

learnseo122

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Can anyone share the pdf upload form url in this website : https://etsa.us.es/sites/arquitectura/files/2025-12/Dalle-am.pdf
 
I couldn't find any targetable forms using my usual Google dorks, so one option would be to set up a spider app, like Screaming Frog, set it to crawl the base domain and parse the pages for any forms it finds that contain file upload fields, eg
Code:
type="file"

Then follow these steps:
1) Fill in any form that gets found and keep your chrome dev tools open on the network tab. Watch the requests made when you're filling in the form, and check the returned data for any clues about what the path to your uploaded file might be.
2) If you can't work out the location of the uploaded file after say 5-10 minutes, move on to another form.
 
There are no public forms. They are using either plugin exploits or loopholes to directly upload files through shell commands.
 
Which plugins??
Old versions of some form submission plugins have exploits like backdoor vulnerability. Hackers find sites that are still using them like edu/gov sites and upload PDFs to them.

Nowadays, it's hard to find open forms as they get patched quickly. You need to find advanced techniques that last long. I have seen some exploits last over an year.
 
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