{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-28268",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-26T01:52:58.732Z",
        "datePublished": "2026-02-27T20:16:29.842Z",
        "dateUpdated": "2026-03-03T20:26:53.644Z"
    },
    "containers": {
        "cna": {
            "title": "Vikunja Vulnerable to Account Takeover via Password Reset Token Reuse",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-459",
                            "lang": "en",
                            "description": "CWE-459: Incomplete Cleanup",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-640",
                            "lang": "en",
                            "description": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2"
                },
                {
                    "name": "https://github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889f87b2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889f87b2"
                },
                {
                    "name": "https://vikunja.io/changelog/vikunja-v2.1.0-was-released",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://vikunja.io/changelog/vikunja-v2.1.0-was-released"
                }
            ],
            "affected": [
                {
                    "vendor": "go-vikunja",
                    "product": "vikunja",
                    "versions": [
                        {
                            "version": "< 2.1.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-02-27T20:16:29.842Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a critical logic bug in the token cleanup cron job, reset tokens remain valid forever. This allows an attacker who intercepts a single reset token (via logs, browser history, or phishing) to perform a complete, persistent account takeover at any point in the future, bypassing standard authentication controls. Version 2.1.0 contains a patch for the issue."
                }
            ],
            "source": {
                "advisory": "GHSA-rfjg-6m84-crj2",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-03-03T20:26:41.313436Z",
                                "id": "CVE-2026-28268",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-03-03T20:26:53.644Z"
                }
            }
        ]
    }
}