{"id":"CVE-2026-72583","summary":"fastschema - Stored Cross-Site Scripting via MIME Type Bypass in File Upload","details":"A stored cross-site scripting (XSS) vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check.","modified":"2026-08-12T04:18:53.164142373Z","published":"2026-08-10T10:41:24.636Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72583.json","cna_assigner":"TuranSec","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72583.json"},{"type":"ADVISORY","url":"https://github.com/fastschema/fastschema"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72583"},{"type":"ARTICLE","url":"https://github.com/fastschema/fastschema/blob/main/pkg/rclonefs/base.go"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/fastschema/fastschema","events":[{"introduced":"0"},{"fixed":"5613d16fe7d144abed0c880abe9f4c49897cf1f5"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.15.1"},{"fixed":"v0.15.1"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.15.0","v0.14.0","v0.13.1","v0.13.0","v0.12.0","v0.11.1","v0.11.0","v0.10.9","v0.10.8","v0.10.7","v0.10.6","v0.10.5","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.0","v0.8.4","v0.7.2","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.9","v0.7.8","v0.7.7","v0.7.6","v0.7.5","v0.7.4","v0.7.3","v0.7.1","v0.7.0","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.1","v0.5.0","v0.4.0","v0.3.1","v0.3.0","v0.2.0","v0.1.3","v0.1.2","v0.1.1","v0.1.0","v0.0.7","v0.0.6","v0.0.5","v0.0.4","v0.0.3","v0.0.2","v0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72583.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}