{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-123513","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-06T00:46:28.480Z","datePublished":"2026-11-08T01:37:25.882Z","dateUpdated":"2026-11-10T17:59:59.119Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-08T01:37:25.882Z"},"datePublic":"2026-10-22T00:00:00.000Z","title":"Vikunja before 2.7.1 Auth Token Leak via API URL Change","descriptions":[{"lang":"en","value":"Vikunja before 2.7.1 contains a credential exposure vulnerability that allows attackers to steal stored auth tokens by inducing users to switch the frontend API URL. Because checkAndSetApiUrl leaves origin-independent localStorage tokens in place, the bearer token and desktop OAuth refresh token are sent to the attacker's server, enabling account takeover."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Insertion of Sensitive Information Into Sent Data","cweId":"CWE-201","type":"CWE"}]}],"affected":[{"vendor":"go-vikunja","product":"vikunja","defaultStatus":"unaffected","packageURL":"pkg:golang/code.vikunja.io/api","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"2.7.1"},{"version":"2.7.1","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*","versionEndExcluding":"2.7.1"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rj93-wmch-2crq","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-rj93-wmch-2crq)"},{"name":"VulnCheck Advisory: Vikunja before 2.7.1 Auth Token Leak via API URL Change","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-auth-token-leak-via-api-url-change"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-10T16:25:56.714602Z","id":"CVE-2026-123513","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-11-10T17:59:59.119Z"}}]}}