zadewg/RIUS

The Signal app before 5.34 for iOS allows URI spoofing via RTLO injection. It incorrectly renders RTLO encoded URLs beginning with a non-breaking space, when there is a hash character in the URL. This technique allows a remote unauthenticated attacker to send legitimate looking links, appearing to be any website URL, by abusing the non-http/non-https automatic rendering of URLs. An attacker can spoof, for example, example.com, and masquerade any URL with a malicious destination. An attacker requires a subdomain such as gepj, txt, fdp, or xcod, which would appear backwards as jpeg, txt, pdf, and docx respectively.

The Facebook Messenger app for iOS 227.0 and prior and Android 228.1.0.10.116 and prior user interface does not properly represent URI messages to the user, which results in URI spoofing via specially crafted messages.

Instagram iOS 106.0 and prior and Android 107.0.0.11 and prior user interface does not properly represent URI messages to the user, which results in URI spoofing via specially crafted messages

iMessage (Messages app) iOS 12.4 and prior user interface does not properly represent URI messages to the user, which results in URI spoofing via specially crafted messages.

Whatsapp iOS 2.19.80 and prior and Android 2.19.222 and prior user interface does not properly represent URI messages to the user, which results in URI spoofing via specially crafted messages.