CVE-2026-111352: ThinkCMF through 8.0.1 Incorrect Authorization in Admin REST API

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-15 · updated 2026-10-23
Weakness: CWE-863

Description

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.

Affected products

ThinkCMF: through 8.0.1

References

https://github.com/thinkcmf/cmf-api/blob/v8.0.7/src/admin/controller/RoleController.php#L345-L381
https://github.com/thinkcmf/cmf-core/blob/v8.0.3/src/controller/RestAdminBaseController.php#L15-L34
https://github.com/thinkcmf/cmf-core/blob/v8.0.3/src/lib/Auth.php#L40-L61
https://hackmd.io/@hieuPenguinnn/thinkcmf-admin-rest-api-missing-authorization
https://www.vulncheck.com/advisories/thinkcmf-through-8.0.1-incorrect-authorization-in-admin-rest-api
https://hackmd.io/@hieuPenguinnn/thinkcmf-admin-rest-api-missing-authorization

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