{"id":"CVE-2026-111922","published":"2026-10-17T19:16:34.957","lastModified":"2026-10-17T19:16:34.957","description":"Vikunja from 2.2.0 before 2.7.0 contains a permissive CORS configuration that trusts every localhost and 127.0.0.1 port with credentials, even when service.publicurl is set. Attackers controlling a page on any localhost port can send a credentialed request to the token refresh endpoint and read the returned bearer JWT to take over the logged-in user's account.","cvssScore":6.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","cwes":["CWE-942"],"vendors":[],"products":[],"references":[{"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-m687-p538-r5hp","tags":[]},{"url":"https://www.vulncheck.com/advisories/vikunja-2.2.0-before-2.7.0-permissive-cors-policy-trusting-localhost-origins","tags":[]}],"exploitRefs":[{"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-m687-p538-r5hp","tags":[]}],"hasPoc":true,"ai":null}