CVE-2026-86271
MediumCVSS 4.7Summary
Missing authorization vulnerability in FluentCMS up to 0.0.5, affecting the GetAccessible function in PermissionManager.cs. Manipulation results in missing authorization. The attack can be initiated remotely, and the exploit is public.
Risk Assessment
An attacker can gain access to resources without proper permissions, potentially leading to confidentiality and integrity breaches.
Recommendation
Apply patches or restrict access to the permission management functionality.
Other vulnerabilities in FluentCMS
See all- CVE-2026-11434Low
A vulnerability in FluentCMS 0.0.5 in an unknown function of file /admin/blocks in the Blocks Plugin component leads to cross-site scripting (XSS). The attack can be initiated remotely. The exploit has been made public.
- CVE-2026-38947Medium
FluentCMS 1.2.3 is vulnerable to XSS in the TextHTML plugin. An attacker can inject malicious script that executes in the victim's browser.
Original NVD description (English source)
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.