CVE-2026-76877

{
  "etk_id": "ETK-2026-4037",
  "cve_id": "CVE-2026-76877",
  "display_id": "CVE-2026-76877",
  "ghsa_id": "GHSA-2mcx-4x33-hmm3",
  "euvd_id": "EUVD-2026-120823",
  "status": "published",
  "anchor_state": "anchored",
  "title": "WPML Multilingual CMS race-condition authentication bypass",
  "summary": "WPML Multilingual CMS versions through 4.9.7 are affected by an authentication bypass in the language-per-domain SSO logout flow. An unauthenticated attacker may obtain access to an account, including an administrative account, if a user is actively logging out while the relevant SSO flow is enabled.",
  "mitigation": "Disable the affected plugin or avoid the language-per-domain SSO configuration where operationally feasible until an update is available. Restrict administrative access and monitor the vendor for a fixed release.",
  "vendor": "WPML",
  "product": "WPML Multilingual CMS",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 4.9.7"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "WPML Multilingual CMS",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "upstream",
  "exploit": false,
  "pipeline_minutes": 0.029309433333333332,
  "t0_at": "2026-11-10T06:47:00.496000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-10T07:25:22.643628+00:00",
      "days": 0.026645227175925927,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T06:47:00.496000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-10T06:47:00.496000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T06:47:00.496000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-76877"
    }
  }
}