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Vulnerability record · CVE-2023-49090 · published 29 November 2023

CVE-2023-49090: Carrierwave project carrierwave cross-site scripting vulnerability

Carrierwave Project · Carrierwave

CarrierWave is a solution for file uploads for Rails, Sinatra and other Ruby web frameworks. CarrierWave has a Content-Type allowlist bypass vulnerability, possibly leading to XSS. The validation in `allowlisted_content_type?` determines Content-Type permissions by performing a partial match. If the `content_type` argument of `allowlisted_content_type?` is passed a value crafted by the attacker, Content-Types not included in the `content_type_allowlist` will be allowed. This issue has been patched in versions 2.2.5 and 3.0.5.

6.1 CVSS 3.1 Medium EPSS 0.61% · top 52.7% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

CarrierWave is a solution for file uploads for Rails, Sinatra and other Ruby web frameworks. CarrierWave has a Content-Type allowlist bypass vulnerability, possibly leading to XSS. The validation in `allowlisted_content_type?` determines Content-Type permissions by performing a partial match. If the `content_type` argument of `allowlisted_content_type?` is passed a value crafted by the attacker, Content-Types not included in the `content_type_allowlist` will be allowed. This issue has been patched in versions 2.2.5 and 3.0.5.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2023-49090), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.