CVE-2023-1247 in pimcore
Summary
by MITRE • 03/07/2023
Cross-site Scripting (XSS) - Reflected in GitHub repository pimcore/pimcore prior to 11.0.0.
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Analysis
by VulDB Data Team • 04/01/2023
Cross-site scripting vulnerability CVE-2023-1247 affects the pimcore content management platform prior to version 11.0.0, representing a critical security flaw in the reflected XSS category that allows remote attackers to inject malicious scripts into web applications. This vulnerability stems from inadequate input validation and output sanitization mechanisms within the application's handling of user-supplied data, specifically in parameters that are reflected back to users without proper encoding or filtering. The flaw exists in the repository pimcore/pimcore and demonstrates how insufficient security controls in web frameworks can create persistent attack vectors for malicious actors seeking to compromise user sessions or execute unauthorized commands.
The technical implementation of this reflected XSS vulnerability occurs when the application fails to properly sanitize user input before incorporating it into dynamic web page responses. Attackers can craft malicious URLs containing script payloads that, when executed by unsuspecting users, can steal session cookies, perform unauthorized actions on behalf of victims, or redirect users to malicious sites. This vulnerability directly maps to CWE-79 which defines Cross-site Scripting as a weakness where untrusted data is sent to a web browser without proper validation or encoding. The reflected nature of this vulnerability means that the malicious script is reflected off the web server in response to the user's request, making it particularly dangerous as it can be delivered through phishing emails or malicious links without requiring persistent server-side modifications.
Operational impact of CVE-2023-1247 extends beyond simple script execution to encompass potential data breaches, session hijacking, and privilege escalation attacks that could compromise entire user bases. Organizations using affected pimcore versions face significant risk of unauthorized access to sensitive content management systems, potentially exposing confidential data, user credentials, and business-critical information. The vulnerability creates an attack surface that aligns with ATT&CK technique T1531 which focuses on use of remote services for command and control activities, as attackers could leverage this XSS flaw to establish persistent access through compromised user sessions. Additionally, the reflected nature of the vulnerability means that successful exploitation could lead to account takeovers, content manipulation, and potential lateral movement within network environments where pimcore systems are deployed.
Mitigation strategies for CVE-2023-1247 require immediate implementation of proper input validation and output encoding mechanisms throughout the application's data flow. Organizations should upgrade to pimcore version 11.0.0 or later where the vulnerability has been addressed through enhanced sanitization routines and improved parameter handling. Security measures must include implementing Content Security Policy headers to limit script execution, employing proper HTML encoding for all dynamic content, and conducting comprehensive input validation at multiple layers of the application stack. The remediation approach should align with industry best practices for XSS prevention as outlined in OWASP Top Ten and the Defense Information Systems Agency's secure coding guidelines, ensuring that all user-supplied data undergoes rigorous sanitization before being processed or displayed. Regular security testing including automated vulnerability scanning and manual penetration testing should be implemented to identify similar issues in other components of the application ecosystem.