CVE-2026-104803

{
  "etk_id": "ETK-2026-1148",
  "cve_id": "CVE-2026-104803",
  "display_id": "CVE-2026-104803",
  "ghsa_id": "GHSA-gj32-ffvm-frj6",
  "euvd_id": "EUVD-2026-96279",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authentication bypass in whyun WPCOM Member",
  "summary": "WPCOM Member versions through 1.7.27 mishandle its social-login callback. An unauthenticated attacker may impersonate a WordPress account, potentially including an administrator account, if social login is configured and the account's linked provider identifier is known or can be found.",
  "mitigation": "Disable configured social-login providers or deactivate WPCOM Member until the vendor publishes a corrected release. Limit exposure to the affected login endpoint while the plugin remains installed.",
  "vendor": "whyun",
  "product": "WPCOM Member",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 1.7.27"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "WPCOM Member",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "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": 0.0045,
  "epss_percentile": 0.3773,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 16.1348303,
  "t0_at": "2026-10-10T07:41:44.669000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-10T07:41:44.669000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-10T07:41:44.669000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-104803"
    }
  }
}