EUVD-2026-70906
GHSA-4w2x-h688-7527
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Remote unauthenticated network access, no complexity; integrity limited to outbound email abuse only, no confidentiality or availability impact.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
5DescriptionCVE.org
The WPFunnels WordPress plugin before 3.13.0 does not perform any authorisation or nonce check in one of its opt-in submission handlers, and takes the notification recipients and subject from the request, allowing unauthenticated users to make the site send emails to arbitrary recipients with an arbitrary subject.
AnalysisAI
Unauthenticated email relay abuse in WPFunnels WordPress plugin versions 3.1.0 through 3.12.x allows any remote visitor to send emails from the affected site to arbitrary recipients with arbitrary subjects. The opt-in submission handler accepts notification recipients and email subject lines directly from HTTP request parameters without performing authorization checks or WordPress nonce validation, turning the site's trusted mail infrastructure into an open relay. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication, nonce, or special site configuration is required - the vulnerable handler is registered for unauthenticated WordPress AJAX callers (nopriv). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) accurately characterizes the limited but real harm: no confidentiality or availability impact, and integrity impact constrained to outbound email abuse. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update WPFunnels to version 3.13.0 or later, which introduces the missing authorization and nonce validation on the affected opt-in submission handler. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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