Threat intelligence

FluentBoards <= 1.47 - Unauthenticated PHP Object Injection

CVE-2025-39551 · fluent-boards

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Fluent Boards at a vulnerable version. How SiteRespond intelligence works

Vulnerability: FluentBoards <= 1.47 - Unauthenticated PHP Object Injection
Affected software: fluent-boards(Plugin)
Affected versions: ≤ 1.47
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2025-39551
Published: 17 April 2025
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 7cf05767-af07-4577-9f00-b2695237e041). Methodology and redistribution notes

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