{"cve":"CVE-2026-34528","nvd":{"published":"2026-04-01T21:17:00.660","modified":"2026-06-17T10:39:10.730","status":"Analyzed","description":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.settings.Defaults.Apply(user), then strips only Admin. The Execute permission and Commands list from the default user template are not stripped. When an administrator has enabled signup, server-side execution, and set Execute=true in the default user template, any unauthenticated user who self-registers inherits shell execution capabilities and can run arbitrary commands on the server. This issue has been patched in version 2.62.2.","cvss_v4":null,"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-269"],"references":["https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2","https://github.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3f","https://github.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3f"],"products":["filebrowser:filebrowser"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-34528","score":0.0068,"percentile":0.52414,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x8jc-jvqm-pm3f","url":"https://osv.dev/vulnerability/GHSA-x8jc-jvqm-pm3f","summary":"File Browser's Signup Grants Execution Permissions When Default Permissions Includes Execution","modified":"2026-06-25T23:11:05.798543592Z","packages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","ranges":["<2.62.2"],"fixed":["2.62.2"]}]},{"id":"GO-2026-5747","url":"https://osv.dev/vulnerability/GO-2026-5747","summary":"File Browser's Signup Grants Execution Permissions When Default Permissions Includes Execution in github.com/filebrowser/filebrowser","modified":"2026-06-25T23:01:41.230752053Z","packages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","ranges":["<2.62.2"],"fixed":["2.62.2"]}]}],"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."]}