CVE-2026-104449

{
  "etk_id": "ETK-2026-2612",
  "cve_id": "CVE-2026-104449",
  "display_id": "CVE-2026-104449",
  "ghsa_id": "GHSA-4388-phmh-jrw8",
  "euvd_id": "EUVD-2026-91460",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated arbitrary page overwrite in YesWiki Bazar",
  "summary": "YesWiki releases through 4.6.6 allow unauthenticated visitors to abuse the Bazar entry-creation flow to overwrite existing wiki pages. An attacker only needs to reach a page that renders the Bazar action; affected content can include pages protected by normal write permissions.",
  "mitigation": "Upgrade composer package yeswiki/yeswiki to version 4.6.7 or later. Until upgraded, restrict public access to pages that render the Bazar action and configure its module ACL to require authorized users.",
  "vendor": "composer",
  "product": "composer:yeswiki/yeswiki",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 4.6.6"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "4.6.7"
      ],
      "package_name": "yeswiki/yeswiki",
      "purl": "pkg:composer/yeswiki/yeswiki"
    }
  ],
  "cwes": [
    639
  ],
  "cvss_score": 9.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 42.616751533333336,
  "t0_at": "2026-10-02T11:38:21.736000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-09-01T19:06:00+00:00",
      "days": -30.689140462962964,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T11:38:21.736000+00:00",
      "url": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8"
    },
    "trigger_signal": {
      "at": "2026-10-02T11:38:21.736000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T11:38:21.736000+00:00",
      "url": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4388-phmh-jrw8"
    }
  }
}