A critical flaw in the phpBB forum software has been disclosed that lets attackers hijack any account, including administrators, with a single unauthenticated request and no password. Tracked as PTT-2026-004 and rated 9.4 on the CVSS scale, the flaw is pending an official CVE ID. The authentication bypass was discovered by Dan Stefan Alexandru of Pentest-Tools.com and reported to phpBB on June 4. ...