{"cve":"CVE-2025-46653","nvd":{"published":"2025-04-26T21:15:14.403","modified":"2026-06-17T09:26:46.733","status":"Analyzed","description":"Formidable (aka node-formidable) 2.1.0 through 3.x before 3.5.3 relies on hexoid to prevent guessing of filenames for untrusted executable content; however, hexoid is documented as not \"cryptographically secure.\" (Also, there is a scenario in which only the last two characters of a hexoid string need to be guessed, but this is not often relevant.) NOTE: this does not imply that, in a typical use case, attackers will be able to exploit any hexoid behavior to upload and execute their own content.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","score":3.1},"cwes":["CWE-338"],"references":["https://github.com/node-formidable/formidable/blob/d0fbec13edc8add54a1afb9ce1a8d3db803f8d47/CHANGELOG.md?plain=1#L10","https://github.com/node-formidable/formidable/commit/022c2c5577dfe14d2947f10909d81b03b6070bf5","https://github.com/zast-ai/vulnerability-reports/blob/main/formidable/file_upload/report.md","https://github.com/zast-ai/vulnerability-reports/blob/main/formidable/file_upload/report.md"],"products":["node-formidable:formidable"],"source":"nvd","synced_at":"2026-10-19T22:01:11.054312287+00:00"},"epss":{"cve":"CVE-2025-46653","score":0.00446,"percentile":0.38799,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-75v8-2h7p-7m2m","url":"https://osv.dev/vulnerability/GHSA-75v8-2h7p-7m2m","summary":"Formidable relies on hexoid to prevent guessing of filenames for untrusted executable content","modified":"2026-09-10T03:50:57.155224061Z","packages":[{"ecosystem":"npm","name":"formidable","purl":"pkg:npm/formidable","ranges":[">=3.1.1-canary.20211030 <3.5.3"],"fixed":["3.5.3"]},{"ecosystem":"npm","name":"formidable","purl":"pkg:npm/formidable","ranges":[">=2.1.0 <2.1.3"],"fixed":["2.1.3"]}]}],"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."]}