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  5. CVE-2022-45442

CVE-2022-45442: Sinatra vulnerable to Reflected File Download attack

November 30, 2022 (updated November 4, 2025)

An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition header of a response when the filename is derived from user-supplied input.

References

  • github.com/advisories/GHSA-2x8x-jmrp-phxw
  • github.com/advisories/GHSA-8x94-hmjh-97hq
  • github.com/rubysec/ruby-advisory-db/blob/master/gems/sinatra/CVE-2022-45442.yml
  • github.com/sinatra/sinatra
  • github.com/sinatra/sinatra/commit/ea8fc9495a350f7551b39e3025bfcd06f49f363b
  • github.com/sinatra/sinatra/security/advisories/GHSA-2x8x-jmrp-phxw
  • lists.debian.org/debian-lts-announce/2023/01/msg00005.html
  • lists.debian.org/debian-lts-announce/2024/09/msg00020.html
  • nvd.nist.gov/vuln/detail/CVE-2022-45442
  • www.blackhat.com/docs/eu-14/materials/eu-14-Hafif-Reflected-File-Download-A-New-Web-Attack-Vector.pdf

Code Behaviors & Features

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Affected versions

All versions starting from 2.0.0 before 2.2.3, all versions starting from 3.0 before 3.0.4

Fixed versions

  • 3.0.4
  • 2.2.3

Solution

Upgrade to versions 2.2.3, 3.0.4 or above.

Impact 8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-494: Download of Code Without Integrity Check

Source file

gem/sinatra/CVE-2022-45442.yml

Spotted a mistake? Edit the file on GitLab.

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