{"id":"CVE-2024-6844","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-6844","generatedAt":"2026-10-28T01:11:28.774Z","title":"A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths.","description":"A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.","published":"2025-03-20T10:15:34.000Z","lastModified":"2026-06-17T08:18:49.000Z","status":"Modified","sourceIdentifier":"security@huntr.dev","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-346"],"affected":["flask-cors project/flask-cors"],"epss":{"score":0.00319,"percentile":0.24705,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0","tags":["Exploit","Third Party Advisory"],"source":"security@huntr.dev"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-6844","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}