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CVE-2022-45442

28
FAUCET Score

CVE-2022-45442 describes a Reflected File Download (RFD) vulnerability in Sinatra, a Ruby web application framework, affecting versions 2.0 prior to 2.2.3 and 3.0 prior to 3.0.4. This flaw allows an attacker to manipulate the Content-Disposition header based on user-supplied input, potentially leading to malicious file downloads. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector, low attack complexity, and can result in high impacts to confidentiality, integrity, and availability if exploited. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.0, < 2.2.3CPE matchmatch criteria
cpe:2.3:a:sinatrarb:sinatra:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.0.4CPE matchmatch criteria
cpe:2.3:a:sinatrarb:sinatra:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.64%
Probability of exploitation in next 30 days
EPSS Percentile
47.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0064 is in the 48th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: pcs-0:0.11.1-10.el9_0.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: pcs-0:0.10.14-5.el8_7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: pcs-0:0.10.2-4.el8_1.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: pcs-0:0.10.4-6.el8_2.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: pcs-0:0.10.4-6.el8_2.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: pcs-0:0.10.8-1.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: pcs-0:0.11.3-4.el9_1.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: pcs-0:0.10.12-6.el8_6.3
View patch
rubygemspatch availablevia ghsa
Product: sinatraFixed in: 3.0.4
rubygemspatch availablevia ghsa
Product: sinatraFixed in: 2.2.3
redhatno patchvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-backend-container
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-zync-container

Vendor Advisories (2)

rubygemsGHSA-2x8x-jmrp-phxwhigh

Sinatra vulnerable to Reflected File Download attack

Nov 30, 2022
redhatCVE-2022-45442Moderate

sinatra: Reflected File Download attack

Nov 28, 2022

References

lists.debian.org / debian-lts-announce/2024/09/msg00020.html
github.com / advisories/GHSA-8x94-hmjh-97hq
Not Applicable
github.com / sinatra/sinatra/commit/ea8fc9495a350f7551b39e3025bfcd06f49f363b
PatchThird Party Advisory
github.com / sinatra/sinatra/security/advisories/GHSA-2x8x-jmrp-phxw
Third Party Advisory
lists.debian.org / debian-lts-announce/2023/01/msg00005.html
Mailing ListThird Party Advisory
blackhat.com / docs/eu-14/materials/eu-14-Hafif-Reflected-File-Download-A-New-Web-Attack-Vector.pdf
ExploitThird Party Advisory