CVE-2022-0282 in Microweber
Summary
by MITRE • 01/20/2022
Cross-site Scripting in Packagist microweber/microweber prior to 1.2.11.
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Analysis
by VulDB Data Team • 02/25/2026
The vulnerability identified as CVE-2022-0282 represents a cross-site scripting flaw discovered in the Packagist package management system within the microweber/microweber software prior to version 1.2.11. This type of vulnerability falls under the category of client-side attacks where malicious scripts can be injected into web applications and executed in the context of other users' browsers. The flaw specifically affects the package management functionality of the microweber platform, which is a content management system and website builder that allows developers to create and manage web applications through a modular approach.
The technical nature of this vulnerability stems from insufficient input validation and output encoding mechanisms within the microweber package management interface. When users interact with package information or metadata displayed within the system, the application fails to properly sanitize user-supplied data before rendering it in web pages. This lack of proper sanitization creates an environment where attackers can inject malicious javascript code through package descriptions, author information, or other user-controllable fields. The vulnerability is classified as a CWE-79: Cross-Site Scripting - Reflected, which indicates that the malicious script is reflected off the web server and executed in the victim's browser without being stored on the server.
The operational impact of this vulnerability extends beyond simple script execution, as it can be leveraged for more sophisticated attacks within the context of the affected web application. An attacker could potentially craft malicious package metadata that, when viewed by other users, would execute scripts in their browsers to steal session cookies, perform unauthorized actions on behalf of users, or redirect them to malicious sites. This creates a significant risk for developers and users who rely on the microweber package ecosystem, as compromised packages could affect multiple installations and users across the platform. The vulnerability is particularly dangerous in environments where users might be browsing package information from untrusted sources, as the attack vector can be propagated through the package metadata itself.
The mitigation strategy for CVE-2022-0282 involves immediate deployment of the patched version 1.2.11 or later, which includes proper input validation and output encoding mechanisms. Organizations should implement comprehensive security measures including regular package verification, implementation of content security policies, and enhanced input sanitization across all user-controllable fields. The vulnerability aligns with ATT&CK technique T1584.002 which involves the development of tools and malware through package repositories, highlighting the importance of securing package management systems. Additionally, security practitioners should consider implementing automated scanning tools to monitor for malicious package submissions and establish secure coding practices that prevent similar vulnerabilities in future development cycles. Organizations should also conduct regular security audits of their package management systems and implement proper access controls to limit who can submit or modify package information within their environments.