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CVE-2023-49090

21
FAUCET Score

CVE-2023-49090 is a Content-Type allowlist bypass vulnerability in CarrierWave, a file upload solution for Ruby web frameworks. This flaw allows attackers to bypass Content-Type restrictions through a partial match validation, potentially leading to Cross-Site Scripting (XSS). Rated Medium severity (CVSS 6.1), it requires user interaction and could result in limited confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.5CPE matchmatch criteria
cpe:2.3:a:carrierwave_project:carrierwave:*:*:*:*:*:ruby:*:*
>= 3.0.0, < 3.0.5CPE matchmatch criteria
cpe:2.3:a:carrierwave_project:carrierwave:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 49th percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: carrierwaveFixed in: 3.0.5
rubygemspatch availablevia ghsa
Product: carrierwaveFixed in: 2.2.5

Vendor Advisories (1)

rubygemsGHSA-gxhx-g4fq-49hjmedium

CarrierWave Content-Type allowlist bypass vulnerability, possibly leading to XSS

Nov 29, 2023

References

github.com / carrierwaveuploader/carrierwave/commit/39b282db5c1303899b3d3381ce8a837840f983b5
Patch
github.com / carrierwaveuploader/carrierwave/commit/863d425c76eba12c3294227b39018f6b2dccbbf3
Patch
github.com / carrierwaveuploader/carrierwave/security/advisories/GHSA-gxhx-g4fq-49hj
Vendor Advisory