CVE-2026-86271
mediumA vulnerability was found in FluentCMS up to 0.0.5.
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.
CVSS
4.7
4.7 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Severity source: NVD CVSS v3.1 (cna@vuldb.com)
Timeline (UTC)
Published: 2026-09-07 05:16
Modified: 2026-09-09 15:17
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/fluentcms/FluentCMS/ cna@vuldb.com
- https://github.com/fluentcms/FluentCMS/issues/2409 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-86271 cna@vuldb.com
- https://vuldb.com/submit/904824 cna@vuldb.com
- https://vuldb.com/vuln/399430 cna@vuldb.com
- https://vuldb.com/vuln/399430/cti cna@vuldb.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗