CVE-2025-40675 in Bagisto
Summary
by MITRE • 06/09/2025
A Reflected Cross-Site Scripting (XSS) vulnerability has been found in Bagisto v2.0.0. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL using the parameter 'query' in '/search'. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.
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Analysis
by VulDB Data Team • 10/07/2025
The vulnerability identified as CVE-2025-40675 represents a critical reflected cross-site scripting flaw within the Bagisto e-commerce platform version 2.0.0. This security weakness exists in the search functionality where the application fails to properly sanitize user input passed through the 'query' parameter in the '/search' endpoint. The vulnerability operates under CWE-79 which categorizes improper neutralization of input during web page generation, making it a classic example of how insufficient input validation can lead to arbitrary code execution in user browsers.
The technical exploitation of this vulnerability requires an attacker to craft a malicious URL containing crafted JavaScript payload within the query parameter and deliver it to a victim through social engineering tactics or phishing campaigns. When the victim clicks the malicious link, the web application reflects the attacker-controlled script back to the user's browser without proper sanitization or encoding, thereby executing the malicious code in the context of the victim's session. This type of attack directly aligns with the ATT&CK framework's T1566.001 technique for initial access through spearphishing attachments, demonstrating how seemingly benign search functionality can become a vector for sophisticated attacks.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to steal sensitive session cookies and authentication tokens, potentially allowing full account compromise and unauthorized access to user data. Attackers could leverage this vulnerability to perform actions on behalf of users, including modifying account settings, accessing personal information, or conducting fraudulent transactions. The reflected nature of the vulnerability means that the attack is typically delivered through a single URL that must be clicked by the victim, making it particularly dangerous in targeted campaigns. The vulnerability affects all users of the affected Bagisto version and poses significant risk to both customer privacy and business security.
Mitigation strategies for CVE-2025-40675 should prioritize immediate implementation of input validation and output encoding mechanisms within the Bagisto application. The primary defense involves sanitizing all user input through proper encoding techniques before rendering any content back to the browser, specifically implementing HTML entity encoding for the query parameter values. Organizations should also consider implementing Content Security Policy (CSP) headers to limit script execution and prevent unauthorized code injection. Additionally, regular security updates and patches should be applied as soon as they become available from the Bagisto development team, while maintaining comprehensive monitoring of web application logs for potential exploitation attempts. The vulnerability highlights the critical importance of input validation and output encoding practices, which are fundamental requirements in secure web application development and align with OWASP Top Ten security controls.