Concrete CMS 9 to 9.4.2 and versions below 8.5.21 are vulnerable to Reflected Cross-Site Scripting (XSS) in the Conversation Messages Dashboard Page. Unsanitized input could cause theft of session cookies or tokens, defacement of web content, redirection to malicious sites, and (if victim is an admin), the execution of unauthorized actions. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Fortbridge https://fortbridge.co.uk/ for performing a penetration test and vulnerability assessment on Concrete CMS and reporting this issue.
References
Configurations
Configuration 1 (hide)
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History
04 Sep 2025, 15:54
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://documentation.concretecms.org/9-x/developers/introduction/version-history/943-release-notes - Release Notes | |
| References | () https://documentation.concretecms.org/developers/introduction/version-history/8521-release-notes - Release Notes | |
| References | () https://www.concretecms.org/download - Product | |
| CPE | cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* | |
| CWE | CWE-79 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.8 |
| First Time |
Concretecms
Concretecms concrete Cms |
06 Aug 2025, 20:23
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
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05 Aug 2025, 23:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-08-05 23:15
Updated : 2025-09-04 15:54
NVD link : CVE-2025-8571
Mitre link : CVE-2025-8571
CVE.ORG link : CVE-2025-8571
JSON object : View
Products Affected
concretecms
- concrete_cms