CVE-2026-48611

CVSS Score & Metrics

Base Score

9.8 / 10

Vector String

                                        CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H                                    

Vulnerability Description

Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to unauthorized access in default installations.

Vulnerability Details

Published Date

June 12, 2026

Last Modified

June 17, 2026

CWE ID

CWE-287

Source

NVD

Vendor

phpBB

Product

phpBB

External References

https://www.phpbb.com/community/viewtopic.php?t=2672170

CVSS Score & Metrics

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Vulnerability Details

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