A vulnerability, which was classified as problematic , has been found 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. This vulnerability appears as CVE-2026-11434 . The attack may be initiated remotely. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.