CVE-2026-86817

validatedZero produced an exploit or a check.

GHSA-qpw5-3rj5-433c ↗EUVD-2026-92074 ↗

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.
Five Star Business Profile and Schema >= 2.3.20, < 2.4.0
fixed in 2.4.0
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
ETK-2026-604, permanent identifier
+18h42mTTV
45mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+18h42magent stopped
0
+6h
+12h

description

Versions before 2.4.0 can allow users with Author-level access or higher to cause sensitive site data to appear in public schema output. Exposed information may include password hashes and site option values, which can then be read by unauthenticated visitors.

mitigation

Update Five Star Business Profile and Schema to version 2.4.0 or later. Review public schema output and rotate credentials or secrets if sensitive values may have been exposed.

fixed in 2.4.0

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.
yes, high privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.23%13th percentile
agent run time
45m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-04 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. 2026-10-04 06:00Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-86817

{
  "etk_id": "ETK-2026-604",
  "cve_id": "CVE-2026-86817",
  "display_id": "CVE-2026-86817",
  "ghsa_id": "GHSA-qpw5-3rj5-433c",
  "euvd_id": "EUVD-2026-92074",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authenticated data disclosure in Five Star Business Profile and Schema",
  "summary": "Versions before 2.4.0 can allow users with Author-level access or higher to cause sensitive site data to appear in public schema output. Exposed information may include password hashes and site option values, which can then be read by unauthenticated visitors.",
  "mitigation": "Update Five Star Business Profile and Schema to version 2.4.0 or later. Review public schema output and rotate credentials or secrets if sensitive values may have been exposed.",
  "vendor": null,
  "product": "Five Star Business Profile and Schema",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.3.20, < 2.4.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2.4.0"
      ],
      "package_name": "Five Star Business Profile and Schema",
      "purl": null
    }
  ],
  "cwes": [
    200
  ],
  "cvss_score": 4.9,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
  "epss_score": 0.0023,
  "epss_percentile": 0.1345,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 45.16892618333333,
  "t0_at": "2026-10-04T06:00:23.722000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-05T00:42:05.348040+00:00",
      "days": 0.7789540050925926,
      "is_lower_bound": false,
      "measured_at": "2026-10-04T06:00:23.722000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-04T06:00:23.722000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-04T06:00:23.722000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-86817"
    }
  }
}

published 2026-10-04 23:56Z
last change 2026-10-21 19:22Z

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