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Threat intelligence

Ninja Forms <= 3.11.0 - Unauthenticated PHP Object Injection

CVE-2025-9083 · ninja-forms

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

Vulnerability
Ninja Forms <= 3.11.0 - Unauthenticated PHP Object Injection
Affected software
ninja-forms(Plugin)
Affected versions
  • ≤ 3.11.0
Authentication
Unauthenticated
Vulnerability type
Other
Published
28 August 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 a567b932-7984-400b-bca0-8d2b0e4b1cb7). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Ninja Forms version against this catalog when the Defence plugin is connected to your WordPress site.