{
  "id": "cve-2023-27351",
  "cveID": "CVE-2023-27351",
  "vendor": "PaperCut",
  "product": "NG/MF",
  "vulnerabilityName": "PaperCut NG/MF Improper Authentication Vulnerability",
  "shortDescription": "PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.",
  "requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "dateAdded": "2026-04-20",
  "dueDate": "2026-05-04",
  "knownRansomware": true,
  "cwes": [
    "CWE-287"
  ],
  "notes": "https://www.papercut.com/kb/Main/PO-1216-and-PO-1219 ; https://nvd.nist.gov/vuln/detail/CVE-2023-27351",
  "sources": [
    {
      "label": "NVD",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27351"
    },
    {
      "label": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    },
    {
      "label": "papercut.com",
      "url": "https://www.papercut.com/kb/Main/PO-1216-and-PO-1219"
    },
    {
      "label": "nvd.nist.gov",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27351"
    }
  ],
  "cvss": {
    "score": 7.5,
    "severity": "HIGH",
    "version": "3.1",
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  },
  "epss": {
    "score": 0.78052,
    "percentile": 0.99545
  },
  "timeline": [
    {
      "date": "2026-04-20",
      "event": "Added to the CISA KEV catalog"
    },
    {
      "date": "2026-05-04",
      "event": "CISA remediation due date (BOD 22-01)"
    }
  ],
  "status": "past due"
}