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CVE-2026-97296 – PHP Object Injection (Deserialization of Untrusted Data) – Gravity Forms before 3.1

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Summary

CVE-2026-97296 is a Deserialization of Untrusted Data vulnerability (PHP object injection, CWE-502) in the Rocketgenius Gravity Forms plugin for WordPress. All versions before 3.1.1 are affected. The vulnerability has a CVSS v3.1 base score of 8.1 (High).

Technical details

  • Root cause: deserialization of untrusted data (CWE-502), which allows object injection attacks (CAPEC-586).
  • Attack vector: network, with no privileges and no user interaction required. Attack complexity is rated High.
  • Impact: the CVSS vector rates confidentiality, integrity and availability impact as High.
  • The CVE record does not describe the specific vulnerable code path, trigger conditions or any public exploit, so none are stated here.

Affected software

  • Gravity Forms (Rocketgenius, Inc) for WordPress: all versions before 3.1.1

Severity

  • CVSS v3.1 base score: 8.1 (High)
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: update Gravity Forms to version 3.1.1 or later.
  • The CVE record lists no workarounds. If you cannot update immediately, identify the exposed WordPress sites that run Gravity Forms and prioritize them for patching.

References

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