CVE-2022-25839

Name of the Vulnerable Software and Affected Versions url-js versions prior to 2.1.0

Description 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.

Recommendations For versions prior to 2.1.0, update to version 2.1.0 or later to resolve the issue. As a temporary workaround, consider validating URLs manually to prevent hostname spoofing. Restrict the use of backslashes in URLs to minimize the risk of exploitation.