CVE-2026-85520

{
  "etk_id": "ETK-2026-515",
  "cve_id": "CVE-2026-85520",
  "display_id": "CVE-2026-85520",
  "ghsa_id": "GHSA-mxmh-vx83-qfxg",
  "euvd_id": "EUVD-2026-88735",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated arbitrary file write in PrestaShop gmfeed",
  "summary": "The Google Merchant Center Feed (gmfeed) module for PrestaShop has an unauthenticated file-write vulnerability in its feed endpoint. An unauthenticated remote attacker may write attacker-controlled files and achieve code execution if the vulnerable endpoint is reachable.",
  "mitigation": "Upgrade the Google Merchant Center Feed (gmfeed) module to version 2.3.9 or later. Restrict public access to the module's feed endpoint until the update is applied.",
  "vendor": "MyPresta",
  "product": "Google Merchant Center Feed",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.9.1, <= 2.3.8"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2.3.9"
      ],
      "package_name": "Google Merchant Center Feed",
      "purl": null
    }
  ],
  "cwes": [
    73
  ],
  "cvss_score": 9.3,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
  "epss_score": 0.0099,
  "epss_percentile": 0.6214,
  "epss_asof": "2026-10-21",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "mechanism_verified",
  "exploit": false,
  "pipeline_minutes": 41.698772016666666,
  "t0_at": "2026-09-29T11:28:55.953000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-04T00:54:52.798072+00:00",
      "days": 4.559685706851852,
      "is_lower_bound": false,
      "measured_at": "2026-09-29T11:28:55.953000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-09-29T00:00:00+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-29T11:28:55.953000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-85520"
    },
    "public_poc": {
      "at": "2026-09-29T13:51:05+00:00",
      "days": 0.09871582175925926,
      "is_lower_bound": false,
      "measured_at": "2026-09-29T11:28:55.953000+00:00",
      "url": "https://github.com/murrez/CVE-2026-85520"
    },
    "trigger_signal": {
      "at": "2026-09-29T00:00:00+00:00",
      "days": -0.47842538194444445,
      "is_lower_bound": false,
      "measured_at": "2026-09-29T11:28:55.953000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-85520"
    }
  }
}