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CVE-2026-96408

CVE-2026-96408

validatedZero produced an exploit or a check.

GHSA-9xxq-384j-m3qw ↗EUVD-2026-94281 ↗

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.
Six Apart Ltd. Movable Type Cloud Edition >= 9.2.0, <= 9.2.1; >= 9.0.0, <= 9.0.9; >= 8.8.0, <= 8.8.5; >= 8.0.0, <= 8.0.12; >= 2.0, <= 2.17
CWE-94 Improper Control of Generation of Code ('Code Injection')
ETK-2026-865, permanent identifier
cvss9.3cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
+2h13mTTV
28mAI 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+2h13magent stopped
0
+1h
+2h

description

Movable Type Cloud Edition, Movable Type, Movable Type Premium Cloud Edition, and Movable Type Premium are affected by code injection in upgrade scripts. An unauthenticated attacker who can access the vulnerable upgrade functionality may execute Perl code or SQL queries.

mitigation

Restrict unauthenticated and public access to Movable Type upgrade scripts, including through network and web-server access controls. Contact Six Apart for an updated release or official remediation guidance; no fixed version is recorded in the advisory.

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.
0.64%50th percentile
agent run time
28m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-07 10:18Z
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. 2026-10-07 10:18Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-96408

this entry in the feed

GET /api/v1/feed/CVE-2026-96408

{
  "etk_id": "ETK-2026-865",
  "cve_id": "CVE-2026-96408",
  "display_id": "CVE-2026-96408",
  "ghsa_id": "GHSA-9xxq-384j-m3qw",
  "euvd_id": "EUVD-2026-94281",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated code injection in Movable Type upgrade scripts",
  "summary": "Movable Type Cloud Edition, Movable Type, Movable Type Premium Cloud Edition, and Movable Type Premium are affected by code injection in upgrade scripts. An unauthenticated attacker who can access the vulnerable upgrade functionality may execute Perl code or SQL queries.",
  "mitigation": "Restrict unauthenticated and public access to Movable Type upgrade scripts, including through network and web-server access controls. Contact Six Apart for an updated release or official remediation guidance; no fixed version is recorded in the advisory.",
  "vendor": "Six Apart Ltd.",
  "product": "Movable Type Cloud Edition",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.2.0, <= 9.2.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Cloud Edition",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.0.0, <= 9.0.9",
        ">= 8.8.0, <= 8.8.5",
        ">= 8.0.0, <= 8.0.12"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.2.0, <= 9.2.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Premium Cloud Edition",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.0.0, <= 9.0.9",
        ">= 2.0, <= 2.17"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Premium",
      "purl": null
    }
  ],
  "cwes": [
    94
  ],
  "cvss_score": 9.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
  "epss_score": 0.0064,
  "epss_percentile": 0.5012,
  "epss_asof": "2026-10-21",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 28.25642415,
  "t0_at": "2026-10-07T10:18:47.752000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-07T12:31:32.686375+00:00",
      "days": 0.09218674045138889,
      "is_lower_bound": false,
      "measured_at": "2026-10-07T10:18:47.752000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-07T10:18:47.752000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-07T10:18:47.752000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-96408"
    }
  }
}

published 2026-10-07 12:03Z
last change 2026-10-21 20:26Z

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