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CVE-2025-55797

22
FAUCET Score

CVE-2025-55797 describes an improper access control vulnerability in FormCms v0.5.4, specifically within the /api/schemas/history/[schemaId] endpoint. This flaw allows unauthenticated attackers to retrieve historical schema data if they can identify or guess a valid schema ID. Rated with a CVSS score of 6.5 (Medium), the vulnerability has a low attack complexity and requires no user interaction, potentially leading to a loss of confidentiality. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.4CPE matchmatch criteria
cpe:2.3:a:formcms:formcms:0.5.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
22.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 13th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

nugetpatch availablevia ghsa
Product: FormCMSFixed in: 0.5.5

Vendor Advisories (1)

nugetGHSA-6cwx-42hw-w69cmedium

FormCMS has an improper access control vulnerability in the /api/schemas/history/[schemaId] endpoint

Sep 30, 2025

References

github.com / FormCms
Product
github.com / FormCms/FormCms
Product
github.com / KKC73/me/tree/main/CVE-2025-55797
Third Party Advisory