CVE-2025-6664: Codeastro Patient Record CSRF Vulnerability

CVE-2025-6664 Overview

CVE-2025-6664 is a Cross-Site Request Forgery (CSRF) vulnerability in CodeAstro Patient Record Management System 1.0. The flaw allows a remote attacker to trick an authenticated user into submitting unwanted state-changing requests to the application. Exploitation requires user interaction, such as clicking a crafted link or visiting a malicious page while a valid session is active. The issue is classified under CWE-352, and a public exploit has been disclosed. According to the current EPSS data, the probability of exploitation in the wild is low.

Critical Impact
Authenticated users can be coerced into performing unintended actions on patient records, potentially altering healthcare data integrity.

Affected Products

CodeAstro Patient Record Management System 1.0
CPE: cpe:2.3:a:codeastro:patient_record_management_system:1.0:*:*:*:*:*:*:*
Vendor: CodeAstro (codeastro.com)

Discovery Timeline

2025-06-25 - CVE-2025-6664 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-6664

Vulnerability Analysis

The vulnerability resides in an unspecified function of CodeAstro Patient Record Management System 1.0 that accepts state-changing HTTP requests without validating a per-session anti-CSRF token. An attacker who lures an authenticated user to a malicious page can force the browser to issue authenticated requests to the application. Because the server trusts session cookies alone, the forged request is processed as if the victim initiated it.

The exploit has been publicly documented, including reproduction steps hosted on GitHub. See the GitHub CSRF Exploit Documentation and VulDB #313878 Details for a technical write-up.

Root Cause

The application does not enforce anti-CSRF tokens on sensitive endpoints, nor does it validate the Origin or Referer headers on state-changing requests. Cookies are transmitted without the SameSite=Strict or SameSite=Lax attribute, allowing cross-origin request submission.

Attack Vector

Exploitation is network-based and requires user interaction. An attacker crafts an HTML page containing an auto-submitting form or image tag that targets a vulnerable endpoint. When an authenticated administrator or user opens the page, the browser attaches session cookies to the forged request, and the server executes the action. See the GitHub CSRF Reproduction Steps for the disclosed proof-of-concept methodology. No verified sanitized exploit code is included here; refer to the linked advisory for full technical reproduction details.

Detection Methods for CVE-2025-6664

Indicators of Compromise

Unexpected modifications to patient records that do not correlate with legitimate administrator activity in application logs.
HTTP requests to state-changing endpoints with Referer or Origin headers pointing to external domains.
Session cookies transmitted with cross-origin POST requests recorded in web server access logs.

Detection Strategies

Review web server access logs for POST or GET requests to sensitive endpoints where the Referer header is missing or external.
Correlate authenticated user sessions with request origin to identify anomalous cross-site submissions.
Deploy a web application firewall (WAF) rule to flag state-changing requests lacking CSRF tokens.

Monitoring Recommendations

Enable audit logging for all record creation, modification, and deletion actions with source IP and referrer captured.
Alert on rapid sequences of record changes originating from a single authenticated session shortly after external link clicks.
Monitor browser telemetry, where available, for outbound navigations from administrator workstations to unclassified domains preceding record changes.

How to Mitigate CVE-2025-6664

Immediate Actions Required

Restrict administrative access to the Patient Record Management System to trusted network segments until a fix is available.
Instruct authenticated users not to browse untrusted sites while logged into the application.
Configure session cookies with the SameSite=Strict attribute at the reverse proxy or application layer if possible.

Patch Information

No vendor patch has been published in the referenced advisories at the time of writing. Consult the VulDB #313878 Threat Report and CodeAstro for future updates. Organizations using this application should evaluate whether continued production use is appropriate given the absence of a vendor fix.

Workarounds

Implement a reverse proxy that injects and validates anti-CSRF tokens on all state-changing endpoints.
Enforce short session timeouts and require re-authentication for sensitive operations such as record modification.
Deploy browser isolation for administrative users to prevent cross-origin request forgery from untrusted pages.

bash

# Example nginx configuration to enforce SameSite and Referer validation
location / {
    proxy_cookie_flags ~ samesite=strict httponly secure;
    if ($http_referer !~ "^https://patient-records\.example\.com/") {
        return 403;
    }
    proxy_pass http://backend;
}