What happened
Automated URL scanner urlDNA posted on Mastodon (infosec.exchange) on 11 November 2026 that hxxps://pub-f2ec4aa4192d4950abc21ae9510403d4[.]r2[.]dev/still[.]html is a possible phishing page; the host is also on the Phishing Army blocklist. urlDNA's screenshot shows a page imitating a cPanel webmail login with the message "Your session cookie is invalid. Please log in again" and fields for an email address and email password. cPanel and Cloudflare are the services being misused and are not involved. If an email link says your mail session expired, go to your webmail directly instead of using the link.
How the scam works
Pages that copy a familiar sign-in form are usually reached from an email, text, advert, comment or search result that warns of a problem with an account, a delivery or a payment. The form looks official, but anything typed — a password, a one-time code or a wallet recovery phrase — goes to whoever set up the page rather than to the real company. Those details can be used at once to take over the account, change the recovery email or empty a wallet.
The page is hosted on a Cloudflare R2 bucket at pub-f2ec4aa4192d4950abc21ae9510403d4.r2.dev/still.html and copies a cPanel-style webmail login, including a 'session cookie is invalid' message. cPanel and Cloudflare were not the operators of this lure; a genuine host will not ask you to re-enter a mailbox password on a random r2.dev address. If you typed a password there, change it at the real mail host and at any other site that reused it, and review forwarding rules.
Source
Public post on Mastodon, 11 November 2026: https://infosec.exchange/@urldna/117598756242284905
The indicators come from this source and have not been independently checked by scammers.com.