Fixes the nine findings of security audit run 1 on 2.4.1 (T1-T11).
F1: Uploads that are not complete now count only the bytes the server
received, and a chunk that goes above the storage quota gets 422. An
anonymous uploader can no longer fill the quota with declared sizes.
F2: The share password and the admin login have a second limit without
the address (20 attempts per minute per share and per e-mail), because
a forged X-Forwarded-For changes the address.
F3: The system password gate and the admin check now also run on
Livewire updates, so an old uploader snapshot cannot register files.
F4: The session keeps a fingerprint of the system password's hash.
When the admin changes the system password, earlier verifications end.
F5: The page after the upload opens only in the session that created
the share, and only while recipients can still reach the share.
F6: The share password limit counts an attempt before the password is
checked, so parallel attempts cannot pass it.
F7: The system password has the same two limits (5 per address, 20 in
total per minute).
F8: A password change or reset signs the user's other sessions out.
F9: The only admin cannot delete the account, which would open /setup
to every visitor.
The setup wizard also holds the admin password to the password
defaults, and Livewire applies EnsureAdmin to updates.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
surtic86andClaude Opus 5.5
84c8b81f0a