CVE-2022-24873 in Shopware
Summary
by MITRE • 04/28/2022
Shopware is an open source e-commerce software platform. Prior to version 5.7.9, Shopware is vulnerable to non-stored cross-site scripting in the storefront. This issue is fixed in version 5.7.9. Users of older versions may attempt to mitigate the vulnerability by using the Shopware security plugin.
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Analysis
by VulDB Data Team • 04/30/2022
Shopware represents a widely adopted open source e-commerce platform that serves thousands of online businesses globally, making its security posture critical for protecting sensitive transactional data and user privacy. The vulnerability identified as CVE-2022-24873 manifests as a non-stored cross-site scripting flaw within the storefront component of Shopware versions prior to 5.7.9. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting attacks where malicious scripts are injected into web applications. The non-stored nature of this vulnerability means that the malicious payload is not persisted in the application's database but rather executed during the user's interaction with the vulnerable page. The storefront component serves as the public-facing interface where customers browse products, add items to carts, and complete purchases, making it a prime target for attackers seeking to compromise user sessions or steal sensitive information.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input that gets processed and rendered in the storefront without proper sanitization or encoding. When unsuspecting users browse the affected Shopware storefront, their browsers execute the injected malicious scripts, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The impact extends beyond simple script execution as it can enable attackers to perform actions on behalf of users, particularly those with administrative privileges. This vulnerability aligns with ATT&CK technique T1531 which covers "Account Access Removal" and T1059.007 which addresses "Command and Scripting Interpreter: JavaScript", demonstrating how the flaw can be leveraged to execute malicious JavaScript in the context of the user's browser session. The vulnerability is particularly concerning because it affects the storefront, which typically has access to user session data and can potentially expose sensitive information through session cookies or other client-side storage mechanisms.
The operational impact of this vulnerability is significant for Shopware users who may be operating on affected versions, as it creates a persistent risk for customer data compromise and potential financial loss. Organizations relying on Shopware for their e-commerce operations face reputational damage if customer sessions are compromised, and the attack surface expands to include all users who interact with the storefront. The vulnerability affects the platform's core functionality by potentially allowing unauthorized access to customer accounts, cart contents, and personal information. Security professionals should note that this vulnerability represents a medium to high severity risk that can be exploited by attackers with minimal technical skill, particularly when combined with social engineering tactics to encourage users to visit compromised storefront pages. The fix implemented in version 5.7.9 includes proper input validation and output encoding mechanisms that prevent malicious scripts from being executed in the browser context.
Organizations operating older Shopware versions should implement immediate mitigations to reduce risk exposure while planning for the upgrade to version 5.7.9 or later. The recommended approach includes installing the official Shopware security plugin as a temporary workaround, which provides additional protection through enhanced filtering and monitoring of user input. System administrators should also consider implementing web application firewalls with rules specifically designed to detect and block cross-site scripting attempts targeting the storefront components. Network monitoring solutions should be configured to identify unusual traffic patterns that might indicate exploitation attempts, particularly around the storefront endpoints. The mitigation strategy should also include user education to raise awareness about the risks of visiting untrusted storefront pages and the importance of keeping the platform updated. Additionally, organizations should conduct thorough security assessments of their Shopware installations to identify any other potential vulnerabilities in the broader application ecosystem that might be exploited in conjunction with this XSS flaw. The vulnerability serves as a reminder of the importance of maintaining up-to-date software versions and implementing comprehensive security measures throughout the application lifecycle to prevent exploitation of known weaknesses.