Vulnerability in Phpbb

CVE-2026-47366

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 p…

EPSS: 0.003 (22.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-47366?
CVE-2026-47366 is a high-severity vulnerability in Phpbb, classified under Improper Access Control. CVSS score: 7.2/10. Published 2026-06-12.
How severe is CVE-2026-47366?
High severity. CVSS v3 base score is 7.2 out of 10.