CVE-2022-45442

Public Exploit
Sinatra vulnerable to Reflected File Download attack

Description

Sinatra is a domain-specific language for creating web applications in Ruby. 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. Version 2.2.3 and 3.0.4 contain patches for this issue.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.14%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory debian.org Third-Party Advisory blackhat.com
Affected: sinatra sinatra
Published at:
Updated at:

References

Link Tags
https://github.com/sinatra/sinatra/security/advisories/GHSA-2x8x-jmrp-phxw third party advisory
https://github.com/sinatra/sinatra/commit/ea8fc9495a350f7551b39e3025bfcd06f49f363b third party advisory patch
https://github.com/advisories/GHSA-8x94-hmjh-97hq not applicable
https://www.blackhat.com/docs/eu-14/materials/eu-14-Hafif-Reflected-File-Download-A-New-Web-Attack-Vector.pdf third party advisory exploit
https://lists.debian.org/debian-lts-announce/2023/01/msg00005.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2022-45442?
CVE-2022-45442 has been scored as a high severity vulnerability.
How to fix CVE-2022-45442?
To fix CVE-2022-45442, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-45442 being actively exploited in the wild?
It is possible that CVE-2022-45442 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-45442?
CVE-2022-45442 affects sinatra sinatra.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.