All vulnerabilities

Servers and applications

CVE-2021-32679

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, filenames where not escaped by default in controllers using `DownloadResponse`. When a user-supplied filename was passed unsanitized into a `DownloadResponse`, this could be used to trick users into downloading malicious files with a benign file extension. This would show in UI…

Severity
High 8.8
Published
12 Jul 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
19.0.13, 20.0.11, 21.0.3
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • Every version before 19.0.13
  • From 20.0.0 before 20.0.11
  • From 21.0.0 before 21.0.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-32679
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-32679