8.0High

CVE-2026-48612

phpBB phpBB Published: (5 months ago)

Description

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.

Weakness (CWE): CWE-352

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
phpBB phpBB 3.3.0 – ≤ 3.3.16

References and patches