{"cve":"CVE-2025-6278","nvd":{"published":"2025-06-19T21:15:27.017","modified":"2026-06-17T10:01:30.993","status":"Analyzed","description":"A vulnerability classified as critical was found in Upsonic up to 0.55.6. This vulnerability affects the function os.path.join of the file markdown/server.py. The manipulation of the argument file.filename leads to path traversal. The exploit has been disclosed to the public and may be used.","cvss_v4":{"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","score":2.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-22"],"references":["https://github.com/Upsonic/Upsonic/issues/356","https://vuldb.com/?ctiid.313282","https://vuldb.com/?id.313282","https://vuldb.com/?submit.593096","https://github.com/Upsonic/Upsonic/issues/356"],"products":["upsonic:upsonic"],"source":"nvd","synced_at":"2026-10-19T22:03:23.287444849+00:00"},"epss":{"cve":"CVE-2025-6278","score":0.00702,"percentile":0.53255,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-8jf4-fcjr-68c2","url":"https://osv.dev/vulnerability/GHSA-8jf4-fcjr-68c2","summary":"Upsonic is vulnerable to Path Traversal attack through its os.path.join function","modified":"2025-07-09T01:42:08.501513Z","packages":[{"ecosystem":"PyPI","name":"upsonic","purl":"pkg:pypi/upsonic","ranges":["<0.56.0"],"fixed":["0.56.0"]}]},{"id":"PYSEC-2025-67","url":"https://osv.dev/vulnerability/PYSEC-2025-67","summary":"","modified":"2026-06-10T17:02:48.115944048Z","packages":[{"ecosystem":"PyPI","name":"upsonic","purl":"pkg:pypi/upsonic","ranges":["<0.56.0"],"fixed":["0.56.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}