CVE-2025-0660: Stored XSS in Folder Function by Rogue Admin
Description
Concrete CMS versions 9.0.0 through 9.3.9 are affected by a stored XSS in Folder Function.The "Add Folder" functionality lacks input sanitization, allowing a rogue admin to inject XSS payloads as folder names. The Concrete CMS security team gave this vulnerability a CVSS 4.0 Score of 4.8 with vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N. Versions below 9 are not affected. Thanks, Alfin Joseph for reporting.
Classification
CVE ID: CVE-2025-0660
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.8
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Problem Types
CWE-20 Improper Input ValidationAffected Products
Vendor: Concrete CMS
Product: Concrete CMS
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.18% (probability of being exploited)
EPSS Percentile: 36.11% (scored less or equal to compared to others)
EPSS Date: 2025-04-08 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-0660https://documentation.concretecms.org/9-x/developers/introduction/version-history/940-release-notes
https://github.com/concretecms/concretecms/pull/12454
https://github.com/concretecms/bedrock/pull/370