CVE-2026-66565

waiting for further signalsZero needs more public information before it can validate it.

GHSA-gpxw-g22x-43pr ↗EUVD-2026-96519 ↗

no check availablenot proven exploitable
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.
axiomthemes FC United >= n/a, <= 1.1.1
ETK-2026-1198Zero's internal tracking ID, independent of the CVE number., permanent identifier
10d 03h 35msince last run
26mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+5h35m
0
+2h
+4h
+8h
+10h
+12h

description

axiomthemes FC United versions through 1.1.1 are affected by an unauthenticated PHP object injection flaw. An unauthenticated remote attacker may be able to inject PHP objects where an affected installation is reachable.

mitigation

Disable or remove affected FC United installations, or restrict their public access, until a vendor-fixed release is available. Upgrade to the vendor’s corrected version once one is published.

check
no
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.
contextual
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.
0.31%22nd percentile
agent run time
26m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-10 19:36Z
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

Contextual: an exploit technique exists, but no deterministic check could cover this one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-10 19:36Z
    ghsa: trigger signal, started the run
  2. 2026-10-10 19:36Z

this entry in the feed

GET /api/v1/feed/CVE-2026-66565

{
  "etk_id": "ETK-2026-1198",
  "cve_id": "CVE-2026-66565",
  "display_id": "CVE-2026-66565",
  "ghsa_id": "GHSA-gpxw-g22x-43pr",
  "euvd_id": "EUVD-2026-96519",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated PHP object injection in axiomthemes FC United",
  "summary": "axiomthemes FC United versions through 1.1.1 are affected by an unauthenticated PHP object injection flaw. An unauthenticated remote attacker may be able to inject PHP objects where an affected installation is reachable.",
  "mitigation": "Disable or remove affected FC United installations, or restrict their public access, until a vendor-fixed release is available. Upgrade to the vendor’s corrected version once one is published.",
  "vendor": "axiomthemes",
  "product": "FC United",
  "affected": [
    {
      "affected_notes": [
        ">= n/a, <= 1.1.1"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "FC United",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0031,
  "epss_percentile": 0.2283,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 26.315300116666666,
  "t0_at": "2026-10-10T19:36:11.322000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-10T19:36:11.322000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-10T19:36:11.322000+00:00",
      "url": "https://github.com/advisories/GHSA-gpxw-g22x-43pr"
    }
  }
}

published 2026-10-11 00:45Z
last change 2026-10-21 04:45Z

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