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CVE-2026-127204

CVE-2026-127204

validatedZero produced an exploit or a check.

GHSA-x54m-fgf3-986q ↗EUVD-2026-124596 ↗

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).kevAttacks confirmed in the real world.
wp.insider Payment Gateway for PayPal Pro, PayPal Checkout & Subscriptions for WooCommerce < 4.1.1
fixed in 4.1.1
ETK-2026-4307Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
+2h34mTTV
1h 08mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0hcheck available+2h34magent stopped
0
+1h
+2h

description

Payment Gateway for PayPal Pro versions before 4.1.1 can incorrectly mark unpaid WooCommerce orders as paid. A remote unauthenticated attacker may cause fulfillment of orders without a successful payment when the affected checkout functionality is reachable.

mitigation

Upgrade Payment Gateway for PayPal Pro to version 4.1.1 or later. Until upgraded, restrict public access to affected checkout functionality where operationally feasible and review recently completed orders for unverified payments.

fixed in 4.1.1

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.
–
agent run time
1h 08m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-12 17:46Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

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

  1. 2026-11-12 17:46Z
    ghsa: trigger signal, started the run
    https://github.com/advisories/GHSA-x54m-fgf3-986q
  2. 2026-11-12 17:46Z

this entry in the feed

GET /api/v1/feed/CVE-2026-127204

{
  "etk_id": "ETK-2026-4307",
  "cve_id": "CVE-2026-127204",
  "display_id": "CVE-2026-127204",
  "ghsa_id": "GHSA-x54m-fgf3-986q",
  "euvd_id": "EUVD-2026-124596",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Payment bypass in Payment Gateway for PayPal Pro",
  "summary": "Payment Gateway for PayPal Pro versions before 4.1.1 can incorrectly mark unpaid WooCommerce orders as paid. A remote unauthenticated attacker may cause fulfillment of orders without a successful payment when the affected checkout functionality is reachable.",
  "mitigation": "Upgrade Payment Gateway for PayPal Pro to version 4.1.1 or later. Until upgraded, restrict public access to affected checkout functionality where operationally feasible and review recently completed orders for unverified payments.",
  "vendor": "wp.insider",
  "product": "Payment Gateway for PayPal Pro, PayPal Checkout & Subscriptions for WooCommerce",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 4.1.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "4.1.1"
      ],
      "package_name": "Payment Gateway for PayPal Pro, PayPal Checkout & Subscriptions for WooCommerce",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 67.55588613333333,
  "t0_at": "2026-11-12T17:46:44.117000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-12T20:21:00.934602+00:00",
      "days": 0.10713909261574074,
      "is_lower_bound": false,
      "measured_at": "2026-11-12T17:46:44.117000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-12T17:46:44.117000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-12T17:46:44.117000+00:00",
      "url": "https://github.com/advisories/GHSA-x54m-fgf3-986q"
    }
  }
}

published 2026-11-12 19:13Z
last change 2026-11-13 03:49Z

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