CVE-2025-8571
MEDIUMConcrete CMS < 8.5.21 and 9.0.0-9.4.2 - Reflected Cross-Site Scripting in Conversation Messages Dashboard Page
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2025-8571. PoCs published by chimdi2700.
AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2025-8571, targeting a JWT authentication bypass in a WordPress plugin. The script generates a crafted JWT token to impersonate a user and modify their details via an API endpoint.
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.
Exploits (1)
This repository contains a functional Python exploit for CVE-2025-8571, targeting a JWT authentication bypass in a WordPress plugin. The script generates a crafted JWT token to impersonate a user and modify their details via an API endpoint.
References (3)
Scores
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N