AUGUST 4, 2026
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Case File

CVE-2025-8571

MEDIUM · CVSS 4.8 EPSS 0.32%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-08-05 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.8. See the original NVD description below for full technical details.

CVE
CVE-2025-8571
Severity
MEDIUM
CVSS
4.8
EPSS
0.32%

Original NVD Description

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.

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