What is CVE-2026-84802?

CVE-2026-84802 is a medium-severity vulnerability in Craftcms Cms, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-02.

How severe is CVE-2026-84802?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Craftcms Cms

CVE-2026-84802

Craft CMS versions from 5.7.0 before 5.10.12 contain an information disclosure vulnerability in AssetsController::actionMoveInfo that fails to enforce volume permissions. Authenticated control panel users can submit POST requests to the assets/move-info endpoint with arbitrary folderIds to retrieve asset count and total storage size for volumes they cannot access.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Craftcms Cms

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-84802?: CVE-2026-84802 is a medium-severity vulnerability in Craftcms Cms, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-02.
How severe is CVE-2026-84802?: Medium severity. CVSS v3 base score is 4.3 out of 10.