Medium severity · published Sep 30, 2025
CVE-2025-55797
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…
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Formcms · Formcms
0.5.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55797
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55797
Product
https://github.com/FormCms
Product
https://github.com/FormCms/FormCms
Third Party Advisory
https://github.com/KKC73/me/tree/main/CVE-2025-55797
More from Formcms
6.1
CVE-2025-56236
FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature