{"id":"CVE-2026-123494","title":"Vikunja before 2.7.1 Login CSRF via Migration OAuth Callbacks","summary":"Vikunja before 2.7.1 contains a cross-site request forgery vulnerability that allows attackers to import their data into a victim's account because the Todoist, Microsoft To Do, and Trello migration OAuth callbacks lack a bound state par…","severity":"low","cvss":3.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-352"],"vendor":"go-vikunja","product":"vikunja","affected":["vikunja < 2.7.1"],"published":"2026-11-08","updated":"2026-11-08","sourceUpdated":"2026-11-08T01:37:12.872Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123494","references":[{"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xgw3-ccqg-f6ww","label":"GitHub Security Advisory (GHSA-xgw3-ccqg-f6ww)"},{"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-login-csrf-via-migration-oauth-callbacks","label":"VulnCheck Advisory: Vikunja before 2.7.1 Login CSRF via Migration OAuth Callbacks"}],"tags":["cve.org"],"ingestedAt":"2026-11-08T02:43:18.708Z","slug":"CVE-2026-123494","body":"## Overview\n\nVikunja before 2.7.1 contains a cross-site request forgery vulnerability that allows attackers to import their data into a victim's account because the Todoist, Microsoft To Do, and Trello migration OAuth callbacks lack a bound state parameter. Attackers can authorize their own account, keep the unused callback code or token, and lure a logged-in victim to the migration callback route to auto-import attacker-chosen projects and tasks containing phishing links.\n\n## Affected\n\n- `vikunja < 2.7.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":19,"depthScoreParts":{"impact":19.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}