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CVE-2026-117687

CVE-2026-117687

validatedZero produced an exploit or a check.

GHSA-hh5g-4f37-mr2v ↗EUVD-2026-124179 ↗

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 >= 8.8.0, <= 8.8.6; >= 8.0.0, <= 8.0.13; >= 2.00, <= 2.18
ETK-2026-4249Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss7.3cna vendorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
+4h39mTTV
34mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hcheck available+4h39magent stopped
0
+1h
+2h
+3h
+4h
+5h

description

Movable Type deployments using Dynamic Publishing are affected by a code-injection flaw. An attacker may cause PHP code to run when a crafted request is processed through the affected functionality, particularly in contexts that permit PHP in dynamic template output.

mitigation

Upgrade Movable Type to 8.8.7 or 8.0.14, as appropriate for the deployed release line. Until upgraded, disable Dynamic Publishing where feasible and ensure DynamicTemplateAllowPHP is disabled.

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.
–
agent run time
34m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-12 03:03Z
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. 2026-11-12 03:03Z
    ghsa: trigger signal, started the run
    https://github.com/advisories/GHSA-hh5g-4f37-mr2v
  2. 2026-11-12 03:03Z

this entry in the feed

GET /api/v1/feed/CVE-2026-117687

{
  "etk_id": "ETK-2026-4249",
  "cve_id": "CVE-2026-117687",
  "display_id": "CVE-2026-117687",
  "ghsa_id": "GHSA-hh5g-4f37-mr2v",
  "euvd_id": "EUVD-2026-124179",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Code injection in Movable Type Dynamic Publishing",
  "summary": "Movable Type deployments using Dynamic Publishing are affected by a code-injection flaw. An attacker may cause PHP code to run when a crafted request is processed through the affected functionality, particularly in contexts that permit PHP in dynamic template output.",
  "mitigation": "Upgrade Movable Type to 8.8.7 or 8.0.14, as appropriate for the deployed release line. Until upgraded, disable Dynamic Publishing where feasible and ensure DynamicTemplateAllowPHP is disabled.",
  "vendor": "Six Apart Ltd.",
  "product": "Movable Type",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 8.8.0, <= 8.8.6"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 8.8.0, <= 8.8.6"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Advanced",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 8.0.0, <= 8.0.13"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 8.0.0, <= 8.0.13"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Advanced",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.00, <= 2.18"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Premium",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.00, <= 2.18"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Movable Type Premium Advanced Edition",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 7.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 33.81881575,
  "t0_at": "2026-11-12T03:03:24.510000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-12T07:42:04.790030+00:00",
      "days": 0.1935217596064815,
      "is_lower_bound": false,
      "measured_at": "2026-11-12T03:03:24.510000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-12T03:03:24.510000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-12T03:03:24.510000+00:00",
      "url": "https://github.com/advisories/GHSA-hh5g-4f37-mr2v"
    }
  }
}

published 2026-11-12 07:08Z
last change 2026-11-12 07:50Z

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