MEDIUM 6.9 NVD
CVE-2026-111653
53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT
53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.
References
- https://github.com/53AI/53AIHub/blob/v0.5.3/api/controller/enterprise.go#L122-L160
- https://github.com/53AI/53AIHub/blob/v0.5.3/api/router/api.go#L54-L66
- https://hackmd.io/@hieuPenguinnn/53aihub-unauth-cross-tenant-enterprise-update
- https://www.vulncheck.com/advisories/53aihub-through-0.5.3-missing-authentication-via-put-
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-16 via NVD.
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