## CSRF Vulnerability in Sessions Helper Exposes User Authentication to Session Hijacking
A security scan has flagged a critical Cross-Site Request Forgery (CSRF) vulnerability within a core authentication file, exposing user sessions to potential hijacking. The flaw, classified as a MEDIUM severity risk, resides in the `app/helpers/sessions_helper.rb` file, where two separate instances of improperly configured cookies create a direct attack vector. This misconfiguration fails to set essential security flags—`secure`, `httponly`, and `samesite`—leaving the application's user authentication mechanism dangerously exposed.

The vulnerability specifically targets the `cookies.permanent[:remember_token]` and `cookies.permanent.encrypted[:user_id]` assignments on lines 11 and 12. Without the proper flags, these cookies are susceptible to interception and manipulation via CSRF attacks, where an attacker could trick a logged-in user into executing unauthorized actions on the application. This flaw is formally mapped to CWE-614 and falls under the OWASP Top 10 category A05:2021 for Security Misconfiguration, indicating a widespread and serious oversight in the application's security posture.

This discovery places immediate pressure on development and security teams to audit and remediate the authentication flow. The absence of these standard cookie attributes is a fundamental security failure that could lead to account compromise and data breaches. While the confidence in the detection is rated at 80%, the presence of such a vulnerability in a helper responsible for session management signals a significant gap in the application's defense-in-depth strategy, requiring urgent review and implementation of security best practices to prevent exploitation.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: CSRF, Security Vulnerability, Authentication, Ruby on Rails, OWASP
- **Credibility**: unverified
- **Published**: 2026-03-29 19:26:56
- **ID**: 40012
- **URL**: https://whisperx.ai/en/intel/40012