boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-86271

n/a FluentCMS — FluentCMS PermissionManager.cs GetAccessible authorization
  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   H   N   L   L   L    2.0   .0040   31.5     —
AFFECTED
  Product    Versions  Fixed
  FluentCMS  0.0.1 –   —
TIMELINE
  Sep 6   Reserved by VulDB
  Sep 7   Published (CNA: VulDB)
  Sep 9   EXPLOIT PUBLISHED — CVE-2026-86271 (FluentCMS). Public exploit reference added.
CWE-862, CWE-863 · CNA: VulDB · CVSS v4.0 · 6 references · NVD status: Deferred

Description

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.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
September 6, 2026ReservedReserved by VulDB
September 7, 2026PublishedPublished (CNA: VulDB)
September 9, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-86271 (FluentCMS). Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
n/aFluentCMS—0.0.1—

Weaknesses

CWE-862 · CWE-863

References (6)

Related

Authoritative record: CVE-2026-86271 at cve.org

Weaknesses: CWE-862 · CWE-863

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-86271 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.