CVE-2026-11434 MEDIUM

CVE-2026-11434: FluentCMS Blocks Plugin blocks cross site scripting

Vendor N/A
Product FluentCMS
Weakness CWE-79 · XSS
Published June 6, 2026
Last update June 10, 2026

CVSS base score

4.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A weakness has been identified in FluentCMS 0.0.5. The impacted element is an unknown function of the file /admin/blocks of the component Blocks Plugin. This manipulation causes cross site scripting. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

June 6, 2026 CVE published
June 10, 2026 Record updated