Auth bypass in Thinkcmf
CVE-2026-111352
ThinkCMF through 8.0.1 contains an incorrect authorization vulnerability in RestAdminBaseController that allows restricted backend administrators to call every admin REST API endpoint because Auth::check() fails open when no admin_api rule exists. Attackers with a valid admin-type API token can list member emails and mobile numbers, disable members, and call PUT admin/roles/{id}/authorize to grant themselves full administrator rights.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/thinkcmf-admin-rest-api-missing-authorization (third-party-advisory)
- github.com/thinkcmf/cmf-core/blob/v8.0.3/src/lib/Auth.php (technical-description)
- github.com/thinkcmf/cmf-core/blob/v8.0.3/src/controller/RestAdminBaseController… (technical-description)
- github.com/thinkcmf/cmf-api/blob/v8.0.7/src/admin/controller/RoleController.php (technical-description)
- www.vulncheck.com/advisories/thinkcmf-through-8.0.1-incorrect-authorization-in-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111352?
- CVE-2026-111352 is a high-severity vulnerability in Thinkcmf, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-10-15.
- How severe is CVE-2026-111352?
- High severity. CVSS v3 base score is 8.8 out of 10.