CVE-2026-45123 | MyBB up to 1.8.39 Remote Requests Feature inc/functions.php fetch_remote_file server-side request forgery

A vulnerability classified as problematic has been found in MyBB up to 1.8.39. Impacted is the function fetch_remote_file of the file inc/functions.php of the component Remote Requests Feature. Performing a manipulation results in server-side request forgery.

This vulnerability was named CVE-2026-45123. The attack may be initiated remotely. There is no available exploit.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More