CVE-2026-90966

validatedZero produced an exploit or a check.

GHSA-qm9j-xm9j-x4x3 ↗EUVD-2026-117346 ↗

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.
Essential Real Estate < 5.3.5
fixed in 5.3.5
ETK-2026-3608Zero's internal tracking ID, independent of the CVE number., permanent identifier
+3h30mTTV
16mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+3h30magent stopped
0
+1h
+2h
+3h

description

Essential Real Estate versions before 5.3.5 inadequately authorize activation of listing packages. A self-registered customer may obtain a paid package without paying and cause the site to create a corresponding invoice.

mitigation

Upgrade Essential Real Estate to version 5.3.5 or later. Until upgraded, restrict customer registration and review package activations and invoices for unauthorized purchases.

fixed in 5.3.5

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.
–
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
16m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-05 06:00Z
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. 2026-11-05 06:00Z
    ghsa: trigger signal, started the run
  2. 2026-11-05 06:00Z

this entry in the feed

GET /api/v1/feed/CVE-2026-90966

{
  "etk_id": "ETK-2026-3608",
  "cve_id": "CVE-2026-90966",
  "display_id": "CVE-2026-90966",
  "ghsa_id": "GHSA-qm9j-xm9j-x4x3",
  "euvd_id": "EUVD-2026-117346",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass in Essential Real Estate",
  "summary": "Essential Real Estate versions before 5.3.5 inadequately authorize activation of listing packages. A self-registered customer may obtain a paid package without paying and cause the site to create a corresponding invoice.",
  "mitigation": "Upgrade Essential Real Estate to version 5.3.5 or later. Until upgraded, restrict customer registration and review package activations and invoices for unauthorized purchases.",
  "vendor": null,
  "product": "Essential Real Estate",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 5.3.5"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "5.3.5"
      ],
      "package_name": "Essential Real Estate",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 15.683620733333333,
  "t0_at": "2026-11-05T06:00:27.333000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-05T09:30:34.729657+00:00",
      "days": 0.14591894278935186,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T06:00:27.333000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-05T06:00:27.333000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T06:00:27.333000+00:00",
      "url": "https://github.com/advisories/GHSA-qm9j-xm9j-x4x3"
    }
  }
}

published 2026-11-05 09:14Z
last change 2026-11-05 17:49Z

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