CVE-2026-86271

MEDIUM 4.7

FluentCMS PermissionManager.cs GetAccessible authorization

CVSS Score

4.7

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was found in FluentCMS up to 0.0.5. This affects the function GetAccessible of the file src/Backend/FluentCMS.Services/Permissions/PermissionManager.cs. Performing a manipulation results in missing authorization. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

CWE	CWE-862 CWE-863
Vendor	n/a
Product	fluentcms
Published	Sep 7, 2026
Last Updated	Sep 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / FluentCMS

0.0.1 0.0.2 0.0.3 0.0.4 0.0.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/399430 vuldb.com: https://vuldb.com/vuln/399430/cti vuldb.com: https://vuldb.com/cve/CVE-2026-86271 vuldb.com: https://vuldb.com/submit/904824 github.com: https://github.com/fluentcms/FluentCMS/issues/2409 github.com: https://github.com/fluentcms/FluentCMS/

Credits

🔍 volksec (VulDB User) VulDB CNA Team