PT-2026-48827 · Phpbb · Phpbb

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-48612

Mitre

CVSS v3.1

8.0

High

Base vector

AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Improper state verification in the OAuth implementation could allow an attacker to manipulate the authentication flow and cause a victim’s account to be linked to an attacker-controlled account. This can result in unauthorized account linking and potential account takeover.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-48612

Affected Products

Phpbb

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-48612 · Security Note
• https://phpbb.com/community/viewtopic.php?t=2672170 · Note