VulnerabilityModified
CVE-2023-44763
Concrete CMS v9.2.1 is affected by an Arbitrary File Upload vulnerability via a Thumbnail file upload, which allows Cross-Site Scripting (XSS).
MEDIUM 5.4EPSS 0.58%
Does this matter?
Lower severity and a low EPSS score (0.58%). Track it; it rarely justifies an emergency change on its own.
Description
Concrete CMS v9.2.1 is affected by an Arbitrary File Upload vulnerability via a Thumbnail file upload, which allows Cross-Site Scripting (XSS). NOTE: the vendor's position is that a customer is supposed to know that "pdf" should be excluded from the allowed file types, even though pdf is one of the allowed file types in the default configuration.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.58% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- concretecms/concrete cms
- Source
- cve@mitre.org
References
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-ThumbnailExploit, Third Party Advisory
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-ThumbnailExploit, Third Party Advisory
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.