CVE-2026-85570

validatedZero produced an exploit or a check.

GHSA-6pf6-j276-g8cc ↗EUVD-2026-117338 ↗

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.
Tutor LMS >= 1.6.4, < 4.2.0
fixed in 4.2.0
ETK-2026-3604Zero's internal tracking ID, independent of the CVE number., permanent identifier
+3h13mTTV
36mAI 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+3h13magent stopped
0
+1h
+2h
+3h

description

Tutor LMS for WordPress versions before 4.2.0 may disclose correct quiz answers to enrolled students while they are taking a quiz. A student with access to an affected quiz can obtain answer information before submitting an attempt, even when answer-reveal settings are disabled.

mitigation

Upgrade Tutor LMS to version 4.2.0 or later. Until the upgrade is complete, limit access to affected quizzes and avoid relying on answer-visibility settings to protect active quiz content.

fixed in 4.2.0

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.
–
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
36m
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-2026-85570

{
  "etk_id": "ETK-2026-3604",
  "cve_id": "CVE-2026-85570",
  "display_id": "CVE-2026-85570",
  "ghsa_id": "GHSA-6pf6-j276-g8cc",
  "euvd_id": "EUVD-2026-117338",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Quiz answer disclosure in Tutor LMS",
  "summary": "Tutor LMS for WordPress versions before 4.2.0 may disclose correct quiz answers to enrolled students while they are taking a quiz. A student with access to an affected quiz can obtain answer information before submitting an attempt, even when answer-reveal settings are disabled.",
  "mitigation": "Upgrade Tutor LMS to version 4.2.0 or later. Until the upgrade is complete, limit access to affected quizzes and avoid relying on answer-visibility settings to protect active quiz content.",
  "vendor": null,
  "product": "Tutor LMS",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.6.4, < 4.2.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "4.2.0"
      ],
      "package_name": "Tutor LMS",
      "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": 35.8386414,
  "t0_at": "2026-11-05T06:00:24.505000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-05T09:13:33.909246+00:00",
      "days": 0.1341366232175926,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T06:00:24.505000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-05T06:00:24.505000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T06:00:24.505000+00:00",
      "url": "https://github.com/advisories/GHSA-6pf6-j276-g8cc"
    }
  }
}

published 2026-11-05 08:37Z
last change 2026-11-05 17:15Z

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