CVE-2026-47366

EUVD-2026-36377
Improper verification of access permissions when modifying permissions through the Administration Control Panel (ACP) allowed an authenticated administrator to grant permissions beyond the level authorized for their account, resulting in privilege escalation within the administrative interface.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
hackeroneCNA
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
phpbbphpbb
3.3.0 ≤
𝑥
≤ 3.3.16
CNA
Common Weakness Enumeration
References
https://www.phpbb.com/community/viewtopic.php?t=2672170