{"schemaVersion":3,"id":"CVE-2026-6815","aliases":["GHSA-rmxx-v9rj-vpvg","GO-2026-5945"],"status":"published","duplicateOf":null,"title":null,"description":"An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due to insufficient path sanitization, an authenticated attacker with administrative privileges can perform a Path Traversal attack to create or overwrite arbitrary files anywhere on the host filesystem, bypassing the application's intended storage sandbox.","dates":{"published":"2026-05-11T15:20:25.606Z","modified":"2026-05-13T12:33:15.243Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.9,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.9,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Go","score":5.9,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","exploitability":6.4,"impact":5.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.9,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0059,"percentile":0.47192,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.07699999999999999,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00513},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0059,"percentile":0.47192}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00513,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0059,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0059,"percentile":0.47192}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"52584","name":"Casdoor 3.54.1 - Arbitrary File Write via Path Traversal","source":"exploit-database","url":"https://www.exploit-db.com/exploits/52584","maturity":"poc","reliabilityScore":0.5,"verified":false,"type":null,"platforms":["go"],"requiresAuth":null,"exploitdb":{"verified":false,"type":"webapps","platform":"go","file":"exploits/go/webapps/52584.py","codes":["CVE-2026-6815"]},"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","description":"The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/22.html"}],"affected":[{"vendor":"casbin","product":"casdoor","name":"casdoor","label":"casdoor","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2.328.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2.328.0","eol":null,"hubHref":"/vendor/casbin/casdoor"},{"vendor":"casdoor","product":"casdoor","name":"Casdoor","label":"casdoor","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ v2.328.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ v2.328.0","eol":null,"hubHref":"/vendor/casdoor/casdoor"},{"vendor":"github.com/casdoor","product":"casdoor","name":"github.com/casdoor/casdoor","label":"casdoor","ecosystem":"Go","cpePart":null,"purl":"pkg:golang/github.com/casdoor/casdoor","purlType":"golang","versions":[{"text":"≤ 1.1000.0","noFixRecorded":false,"fixedIn":null},{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"≤ 1.1000.0 | All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://kb.cert.org/vuls/id/937808","label":"kb.cert.org/vuls/id/937808","hostname":"kb.cert.org","tags":["WEB","Third Party Advisory","VDB Entry"]},{"url":"https://www.kb.cert.org/vuls/id/937808","label":"www.kb.cert.org/vuls/id/937808","hostname":"www.kb.cert.org","tags":["WEB","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6815","label":"nvd.nist.gov/vuln/detail/CVE-2026-6815","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/casdoor/casdoor","label":"github.com/casdoor/casdoor","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://github.com/advisories/GHSA-rmxx-v9rj-vpvg","label":"github.com/advisories/GHSA-rmxx-v9rj-vpvg","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:21483-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:21483-1"]},"timeline":[{"kind":"published","date":"2026-05-11T15:20:25.606Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-05-13T12:33:15.243Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":34,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T06:24:05.353Z","stale":false,"partial":false}}