CVE-2025-3057 in Drupal
Summary
by MITRE • 04/01/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS).This issue affects Drupal core: from 8.0.0 before 10.3.13, from 10.4.0 before 10.4.3, from 11.0.0 before 11.0.12, from 11.1.0 before 11.1.3.
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Analysis
by VulDB Data Team • 04/01/2025
This cross-site scripting vulnerability represents a critical weakness in Drupal core's input handling mechanisms that enables attackers to inject malicious scripts into web pages viewed by other users. The flaw specifically manifests during web page generation when the system fails to properly neutralize user-supplied input before rendering it in HTML contexts. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that allows attackers to execute scripts in the context of other users' browsers.
The technical implementation of this vulnerability occurs when Drupal processes user input through various content management interfaces, form submissions, or API endpoints without adequate sanitization of potentially malicious content. Attackers can exploit this by crafting specially formatted input that, when processed and displayed by the Drupal system, executes arbitrary JavaScript code in the victim's browser. This typically involves injecting script tags, event handlers, or other malicious payloads that bypass the application's security controls during the rendering phase of web page generation.
The operational impact of this vulnerability extends across multiple Drupal versions, creating a substantial attack surface that affects organizations running affected core versions. The vulnerability affects Drupal 8.0.0 through 10.3.12, 10.4.0 through 10.4.2, 11.0.0 through 11.0.11, and 11.1.0 through 11.1.2, representing a broad range of deployments that could be compromised. Successful exploitation allows attackers to perform session hijacking, deface websites, steal user credentials, or redirect users to malicious sites, making this a particularly dangerous vulnerability for content management systems that handle sensitive user data.
Organizations should immediately implement the official security patches released by Drupal for versions 10.3.13, 10.4.3, 11.0.12, and 11.1.3 to remediate this vulnerability. Additionally, implementing proper input validation and output encoding mechanisms can serve as temporary mitigations while awaiting patch deployment. Security teams should also conduct comprehensive vulnerability assessments across all Drupal installations to identify potential exploitation attempts and monitor for suspicious activities in web server logs that might indicate attempted exploitation of this XSS vulnerability.
This vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, where attackers leverage XSS to execute malicious JavaScript code in user browsers. The remediation strategy should incorporate the principle of least privilege for content management interfaces and implement robust content security policies to prevent unauthorized script execution. Organizations should also consider implementing web application firewalls and monitoring solutions specifically designed to detect and prevent XSS attack patterns in their Drupal deployments.
The vulnerability demonstrates the critical importance of proper input sanitization in web applications, particularly in content management systems that process user-generated content. It highlights the need for comprehensive security testing including dynamic analysis and automated scanning tools that can detect potential XSS vectors in web application code. Regular security updates and patch management procedures should be enforced across all Drupal installations to prevent exploitation of known vulnerabilities that could compromise entire web infrastructures.
Drupal's security advisory emphasizes that this vulnerability could be exploited by unauthenticated attackers, making it particularly dangerous for public-facing websites. The affected versions represent a significant portion of active Drupal deployments, creating widespread potential impact across the web application ecosystem. Organizations should prioritize immediate patching of affected systems and implement additional security controls such as CSP headers, proper content validation, and regular security audits to prevent exploitation of this and similar vulnerabilities in their Drupal environments.