Is CVE-2026-47366 in the CISA KEV catalog?

No. CVE-2026-47366 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-47366?

CVE-2026-47366 has a CVSS v3 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2026-47366?

CVE-2026-47366 has an EPSS score of 0.30% (21th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-47366

HIGH

7.2

CVSS v3

NVD

Description

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.

CWE-284Improper Access Control

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.30%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

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

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-12.