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CVE-2026-104723

CVE-2026-104723

validatedZero produced an exploit or a check.

EUVD-2026-96108 ↗

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.
LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes <= 10.2.1
CWE-502 Deserialization of Untrusted Data
ETK-2026-1141Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss8.8cna vendorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
+1.1dTTV
45mAI 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+26h35magent stopped
0
+6h
+12h
+18h
+24h

description

LifterLMS versions through 10.2.1 process untrusted serialized data in a lesson-creation metadata workflow. An authenticated user with permission to edit courses can inject PHP objects; impact depends on a compatible object chain in another installed plugin or theme.

mitigation

Restrict course-editing and lesson-creation permissions to fully trusted accounts, and disable the affected workflow or plugin where feasible. Review installed plugins and themes for unsafe deserialization chains and apply vendor updates promptly when a corrected LifterLMS release is available.

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, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.45%37th percentile
agent run time
45m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-10 05:31Z
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. 2026-10-10 05:31Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-104723

this entry in the feed

GET /api/v1/feed/CVE-2026-104723

{
  "etk_id": "ETK-2026-1141",
  "cve_id": "CVE-2026-104723",
  "display_id": "CVE-2026-104723",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-96108",
  "status": "published",
  "anchor_state": "anchored",
  "title": "PHP object injection in LifterLMS",
  "summary": "LifterLMS versions through 10.2.1 process untrusted serialized data in a lesson-creation metadata workflow. An authenticated user with permission to edit courses can inject PHP objects; impact depends on a compatible object chain in another installed plugin or theme.",
  "mitigation": "Restrict course-editing and lesson-creation permissions to fully trusted accounts, and disable the affected workflow or plugin where feasible. Review installed plugins and themes for unsafe deserialization chains and apply vendor updates promptly when a corrected LifterLMS release is available.",
  "vendor": "lifterlms",
  "product": "LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 10.2.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes",
      "purl": null
    }
  ],
  "cwes": [
    502
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0045,
  "epss_percentile": 0.3756,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 45.1025292,
  "t0_at": "2026-10-10T05:31:04.327000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-11T08:06:08.568464+00:00",
      "days": 1.1076879799074073,
      "is_lower_bound": false,
      "measured_at": "2026-10-10T05:31:04.327000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-10T05:31:04.327000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-10T05:31:04.327000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-104723"
    }
  }
}

published 2026-10-10 06:53Z
last change 2026-10-21 04:45Z

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