Pocas

Incorrect authorization in ASP.NET Core allows an authorized attacker to elevate privileges over a network. SignalR connections are not consistently bound to the identity negotiated at connection establishment, which enables injected messages to execute Hub invocations as the victim.

The issue arises from improper input validation due to incorrect parsing. This allows the hostname to be spoofed, as seen in the comparison between http://localhost and http://localhost, which are considered the same URL. However, the hostname is not parsed correctly as localhost, and the backslash is reflected as is.

Name of the Vulnerable Software and Affected Versions: gnuboard5 (affected versions not specified) Description: The issue is related to Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting. This means that the software fails to properly neutralize user input, allowing an attacker to inject malicious code into web pages. Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.