CVE-2022-0929 in microweber
Summary
by MITRE • 03/12/2022
XSS on dynamic_text module in GitHub repository microweber/microweber prior to 1.2.11.
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Analysis
by VulDB Data Team • 03/16/2022
The vulnerability CVE-2022-0929 represents a cross-site scripting flaw within the dynamic_text module of the Microweber content management system. This issue affects versions prior to 1.2.11 and demonstrates a critical weakness in input validation and output sanitization mechanisms. The vulnerability arises from insufficient filtering of user-supplied data when processing dynamic text content, creating an avenue for malicious actors to inject arbitrary JavaScript code into web pages viewed by other users.
The technical implementation of this vulnerability stems from improper handling of user input within the dynamic_text module functionality. When users submit content through the module interface, the application fails to adequately sanitize or escape special characters that could be interpreted as executable code by web browsers. This weakness aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities resulting from insufficient input validation and output encoding. The flaw enables attackers to craft malicious payloads that execute within the context of other users' browsers, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of victims.
Operational impact of this vulnerability extends beyond simple script execution, as it can be exploited to compromise entire user sessions and facilitate more sophisticated attacks. An attacker could leverage this XSS flaw to steal authentication tokens, modify content, redirect users to malicious sites, or perform actions within the application with the privileges of authenticated users. The attack vector typically involves诱导 users to click on malicious links or visit compromised pages where the stored XSS payload executes automatically. This vulnerability particularly affects web applications that rely heavily on user-generated content and dynamic text rendering, making it a significant concern for content management systems like Microweber that facilitate extensive user interaction.
Mitigation strategies for CVE-2022-0929 primarily involve upgrading to version 1.2.11 or later, which includes proper input sanitization and output encoding mechanisms. Organizations should implement comprehensive input validation that filters or escapes potentially dangerous characters such as angle brackets, quotes, and script tags. The remediation process should incorporate context-specific output encoding, ensuring that dynamic content is properly escaped based on the target execution context including HTML, JavaScript, and URL contexts. Security measures should also include implementing Content Security Policy headers to limit script execution and employing regular security scanning to identify similar vulnerabilities in other application components. Additionally, developers should follow secure coding practices aligned with ATT&CK framework techniques related to web application attacks, specifically focusing on prevention of code injection vulnerabilities that could lead to XSS exploitation.