{"cve":"CVE-2023-26961","nvd":{"published":"2023-08-08T20:15:10.080","modified":"2026-07-09T01:18:10.930","status":"Modified","description":"Alteryx Server 2022.1.1.42590 does not employ file type verification for uploaded files. This vulnerability allows attackers to upload arbitrary files (e.g., JavaScript content for stored XSS) via the type field in a JSON document within a PUT /gallery/api/media request.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","score":4.8},"cwes":["CWE-79"],"references":["https://gist.github.com/DylanGrl/4269ae834c5d0ec77c9b928ad35d3be3","https://gist.github.com/DylanGrl/4269ae834c5d0ec77c9b928ad35d3be3"],"products":["alteryx:alteryx_server"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-26961","score":0.0048,"percentile":0.41402,"date":"2026-11-01"},"kev":null,"osv":[],"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."]}