{"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"}}]}}