{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2023-27351",
        "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "assignerShortName": "zdi",
        "dateUpdated": "2026-04-21T03:55:37.286Z",
        "dateReserved": "2023-02-28T00:00:00.000Z",
        "datePublished": "2023-04-20T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
                "shortName": "zdi",
                "dateUpdated": "2023-04-20T15:35:13.491Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226."
                }
            ],
            "affected": [
                {
                    "vendor": "PaperCut",
                    "product": "NG",
                    "versions": [
                        {
                            "version": "22.0.5 (Build 63914)",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.papercut.com/kb/Main/PO-1216-and-PO-1219"
                },
                {
                    "url": "https://www.zerodayinitiative.com/advisories/ZDI-23-232/"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative"
                }
            ],
            "metrics": [
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "LOW",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-287: Improper Authentication",
                            "cweId": "CWE-287"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T12:09:43.371Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://www.papercut.com/kb/Main/PO-1216-and-PO-1219",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.zerodayinitiative.com/advisories/ZDI-23-232/",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            },
            {
                "references": [
                    {
                        "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27351",
                        "tags": [
                            "government-resource"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-20T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "active"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2023-27351"
                            }
                        }
                    },
                    {
                        "other": {
                            "type": "kev",
                            "content": {
                                "dateAdded": "2026-04-20",
                                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27351"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-21T03:55:37.286Z"
                },
                "timeline": [
                    {
                        "time": "2026-04-20T00:00:00.000Z",
                        "lang": "en",
                        "value": "CVE-2023-27351 added to CISA KEV"
                    }
                ]
            }
        ]
    }
}