CVE-2025-55797: FormCMS has an improper access control vulnerability in the /api/schemas/history/[schemaId] endpoint

September 30, 2025 (updated November 10, 2025)

An improper access control vulnerability in FormCms v0.5.4 in the /api/schemas/history/[schemaId] endpoint allows unauthenticated attackers to access historical schema data if a valid schemaId is known or guessed.

References

github.com/FormCms
github.com/FormCms/FormCms
github.com/KKC73/me/tree/main/CVE-2025-55797
github.com/advisories/GHSA-6cwx-42hw-w69c
github.com/formcms/formcms/issues/19
nvd.nist.gov/vuln/detail/CVE-2025-55797

Code Behaviors & Features

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