CVE-2026-84434

validatedZero produced an exploit or a check.

GHSA-x9x4-5g6j-pvj3 ↗EUVD-2026-83472 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+16dkevAttacks confirmed in the real world.−1d
Gravity Forms <= 3.1.0.4
CWE-434 Unrestricted Upload of File with Dangerous Type
ETK-2026-614, permanent identifier
+16dTTV
<1mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal +0dkev+1.0dcve.org publication+1.1dcheck available+17dpublic pocagent stopped
0
+5d
+10d
+15d

description

Gravity Forms for WordPress through 3.1.0.4 can allow unauthenticated file uploads that may lead to code execution. Exposure requires a publicly reachable form containing a File Upload field configured as hidden.

mitigation

Remove or change hidden File Upload fields on publicly accessible forms, and restrict access to affected forms where possible. Monitor for a vendor update and apply it when available; no fixed version is recorded in the advisory.

check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
deterministic
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
3.9%90th percentile
agent run time
<1m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-19 02:27Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+16d
Δ to kevAttacks confirmed in the real world.
−1d

outcome

Upstream: a detection for this already ships elsewhere, so we didn't generate a new one. The credit goes to whoever did.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-09-18
    vulncheck_kev: trigger signal, started the run
  2. 2026-09-18 00:00Z
  3. 2026-09-19 02:27Z
  4. 2026-10-05 02:13Z

this entry in the feed

GET /api/v1/feed/CVE-2026-84434

{
  "etk_id": "ETK-2026-614",
  "cve_id": "CVE-2026-84434",
  "display_id": "CVE-2026-84434",
  "ghsa_id": "GHSA-x9x4-5g6j-pvj3",
  "euvd_id": "EUVD-2026-83472",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated arbitrary file upload in Gravity Forms",
  "summary": "Gravity Forms for WordPress through 3.1.0.4 can allow unauthenticated file uploads that may lead to code execution. Exposure requires a publicly reachable form containing a File Upload field configured as hidden.",
  "mitigation": "Remove or change hidden File Upload fields on publicly accessible forms, and restrict access to affected forms where possible. Monitor for a vendor update and apply it when available; no fixed version is recorded in the advisory.",
  "vendor": "Gravity Forms",
  "product": "Gravity Forms",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 3.1.0.4"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Gravity Forms",
      "purl": null
    }
  ],
  "cwes": [
    434
  ],
  "cvss_score": 9.8,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0391,
  "epss_percentile": 0.9019,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "upstream",
  "exploit": false,
  "pipeline_minutes": 0.0174174,
  "t0_at": "2026-09-19T02:27:09.915000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-05T02:13:22.674165+00:00",
      "days": 15.990425453298611,
      "is_lower_bound": false,
      "measured_at": "2026-09-19T02:27:09.915000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-09-18T00:00:00+00:00",
      "days": -1,
      "is_lower_bound": false,
      "measured_at": "2026-09-19T02:27:09.915000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-84434"
    },
    "public_poc": {
      "at": "2026-10-05T02:13:22.693784+00:00",
      "days": 15.99042568037037,
      "is_lower_bound": false,
      "measured_at": "2026-09-19T02:27:09.915000+00:00",
      "url": "https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-84434.yaml"
    },
    "trigger_signal": {
      "at": "2026-09-18T00:00:00+00:00",
      "days": -1.1021980902777777,
      "is_lower_bound": false,
      "measured_at": "2026-09-19T02:27:09.915000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-84434"
    }
  }
}

published 2026-10-05 02:13Z
last change 2026-10-21 06:34Z

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