{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-39903",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-39903",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-10T16:03:20.983Z",
    "updatedAt": "2026-07-28T01:48:45.607Z",
    "importedAt": "2026-10-24T01:58:08.712Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Simple Machines Forum Authorization Bypass via AttachmentApprove.php",
      "summary": "Simple Machines Forum 2.1 prior to commit 7d048f8 and 3.0 prior to commit a7875e8 contains an authorization bypass vulnerability in Sources/Actions/AttachmentApprove.php where a single-character operator error causes the permission check to always pass regardless of user permissions. An authenticated low-privileged user can approve, reject, or delete any pending attachments on any board without holding the required approve_posts permission, bypass moderation queues for their own uploads, and enumerate and delete other users' pending attachments.",
      "affected": [
        {
          "vendor": "SimpleMachines",
          "product": "SMF",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.1.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "2.1.7"
            },
            {
              "version": "7d048f8d66aab9af51cd6ee110fbad103cf673e8",
              "status": "unaffected",
              "versionType": "git"
            },
            {
              "version": "3.0.0",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "a7875e876a647572dd4c45da881b875092caac3d",
              "status": "unaffected",
              "versionType": "git"
            }
          ]
        }
      ]
    }
  }
}