{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-59814",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-07T15:00:50.978Z",
        "datePublished": "2026-09-21T21:13:17.395Z",
        "dateUpdated": "2026-09-22T13:29:52.943Z"
    },
    "containers": {
        "cna": {
            "title": "Joplin: Stored XSS via inline-served note attachment on published shares",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "lang": "en",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.6,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/laurent22/joplin/security/advisories/GHSA-mx98-7h4g-6gmh",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/laurent22/joplin/security/advisories/GHSA-mx98-7h4g-6gmh"
                },
                {
                    "name": "https://github.com/laurent22/joplin/pull/15787",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/laurent22/joplin/pull/15787"
                },
                {
                    "name": "https://github.com/laurent22/joplin/commit/920cd8f463bf9bbce9daa07581676123007118e5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/laurent22/joplin/commit/920cd8f463bf9bbce9daa07581676123007118e5"
                }
            ],
            "affected": [
                {
                    "vendor": "laurent22",
                    "product": "joplin",
                    "versions": [
                        {
                            "version": "< 3.7.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-21T21:13:17.395Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.7, Joplin Server's GET /shares/:id?resource_id= route serves a resource with the attacker-controlled mime value and omits Content-Disposition when the resource title is empty. A low-privileged user can publish an empty-title image/svg+xml attachment whose script executes when a victim opens the public share. By default, user content shares the Joplin Server application origin, allowing the script to access same-origin data and, when the victim is authenticated, perform actions with the victim's session, including reading administrative data and anti-CSRF tokens. Installations that configure USER_CONTENT_BASE_URL to a separate origin still execute the script, but on that separate user-content origin rather than the application origin. This issue is fixed in version 3.7.7."
                }
            ],
            "source": {
                "advisory": "GHSA-mx98-7h4g-6gmh",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/laurent22/joplin/security/advisories/GHSA-mx98-7h4g-6gmh",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-22T13:29:30.699889Z",
                                "id": "CVE-2026-59814",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-22T13:29:52.943Z"
                }
            }
        ]
    }
}