CVE-2006-5476 in Drupal
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability in Drupal 4.6.x before 4.6.10 and 4.7.x before 4.7.4 allows remote attackers to perform unauthorized actions as an arbitrary user via unspecified vectors.
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Analysis
by VulDB Data Team • 04/25/2026
The vulnerability identified as CVE-2006-5476 represents a critical cross-site request forgery flaw affecting Drupal content management systems version 4.6.x prior to 4.6.10 and 4.7.x prior to 4.7.4. This CSRF vulnerability exposes Drupal installations to unauthorized administrative actions by malicious actors who can manipulate user sessions to execute unintended operations. The flaw operates through unspecified vectors that allow remote attackers to leverage legitimate user sessions and permissions to perform actions they should not be authorized to execute. The vulnerability specifically targets the authentication and session management mechanisms within the Drupal framework, potentially enabling attackers to modify user accounts, alter content, or perform administrative functions without proper authorization.
From a technical perspective, CSRF vulnerabilities occur when a web application fails to properly validate the origin of requests, allowing an attacker to trick authenticated users into executing unintended actions against a web application they are currently logged into. In the context of Drupal 4.6.x and 4.7.x versions, the vulnerability stems from inadequate request verification mechanisms that do not sufficiently distinguish between legitimate user-initiated requests and those generated by malicious actors. The flaw exists in the application's handling of session tokens and request validation processes, creating an exploitable gap where attackers can craft malicious requests that appear to originate from authenticated users. This weakness aligns with CWE-352, which specifically addresses cross-site request forgery vulnerabilities in web applications.
The operational impact of CVE-2006-5476 is significant for organizations running affected Drupal versions, as it can result in complete compromise of user accounts and administrative privileges. Attackers exploiting this vulnerability can perform unauthorized modifications to website content, create new user accounts with elevated privileges, or manipulate existing user permissions. The remote nature of the attack means that exploitation can occur without requiring physical access to the system or knowledge of specific user credentials. This vulnerability particularly affects websites that rely heavily on user-generated content or administrative functions, as it can enable attackers to modify critical website data, inject malicious content, or potentially escalate privileges to gain full administrative control over the Drupal installation.
Organizations should immediately implement comprehensive mitigation strategies to address this vulnerability. The primary recommendation involves upgrading to Drupal versions 4.6.10 or 4.7.4, which contain the necessary patches to address the CSRF validation issues. Additionally, administrators should implement proper session management practices, including the use of anti-CSRF tokens in all forms and requests that modify application state. Security teams should also consider implementing web application firewalls that can detect and block suspicious request patterns, along with regular security audits of application code to identify similar vulnerabilities. The mitigation approach should align with ATT&CK framework techniques related to credential access and privilege escalation, as the vulnerability can enable attackers to assume user identities and execute administrative functions. Organizations must also establish proper monitoring and logging mechanisms to detect unauthorized activities that may result from successful CSRF exploitation attempts.