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CVE-2026-32470 – Unauthenticated PHP Object Injection – Roxnor FundEngine (WordPress Plugin) ≤ 1.7.9

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Summary

CVE-2026-32470 is an unauthenticated PHP Object Injection (deserialization of untrusted data) vulnerability in the Roxnor FundEngine WordPress plugin (package wp-fundraising-donation), a donation and crowdfunding platform plugin. The flaw allows an attacker to submit crafted serialized data to the plugin without authentication, and it carries a critical CVSS v3.1 base score of 9.8.

Technical details

  • Root cause: the plugin deserializes attacker-controlled input via PHP’s native object deserialization without validating or sanitizing it first (CWE-502).
  • Trigger conditions: no authentication or user interaction is required to reach the vulnerable code path.
  • Attack vector: network-based, low attack complexity, no privileges required.
  • Impact: depending on other classes ("gadget chains") available in the WordPress/plugin environment, successful exploitation of PHP Object Injection can lead to arbitrary file operations, SQL injection, or remote code execution, alongside the full confidentiality, integrity, and availability impact reflected in the CVSS score.

Affected software

  • Roxnor FundEngine (WordPress plugin, package wp-fundraising-donation) — versions up to and including 1.7.9.
  • Fixed in version 1.8.0.

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: update the FundEngine (wp-fundraising-donation) plugin to version 1.8.0 or later, where the deserialization issue is fixed.
  • If unable to patch immediately: consider disabling or removing the plugin until the update can be applied, and restrict direct access to plugin-related endpoints via a web application firewall as an interim compensating control.
  • Ongoing: verify plugin version reporting on all internet-facing WordPress instances and prioritize remediation on any exposed FundEngine installation given the unauthenticated, network-exploitable nature of this vulnerability.

References

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