CVE-2023-1884 in phpmyfaq
Summary
by MITRE • 04/05/2023
Cross-site Scripting (XSS) - Generic in GitHub repository thorsten/phpmyfaq prior to 3.1.12.
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Analysis
by VulDB Data Team • 07/12/2025
The vulnerability identified as CVE-2023-1884 represents a cross-site scripting flaw classified as a generic XSS vulnerability within the thorsten/phpmyfaq GitHub repository. This issue affects versions prior to 3.1.12 and demonstrates a critical weakness in the application's input validation and output encoding mechanisms. The vulnerability arises from insufficient sanitization of user-supplied data that is subsequently rendered in web pages without proper HTML escaping or context-appropriate encoding. This allows malicious actors to inject arbitrary JavaScript code into the application's response, potentially compromising user sessions and enabling further attack vectors.
The technical implementation of this vulnerability stems from the application's failure to properly handle user input across multiple endpoints where data is accepted and displayed. In the context of phpMyFAQ, this typically occurs when user-provided content is stored and later retrieved for display in web interfaces without adequate sanitization. The flaw manifests when malicious scripts are submitted through various input fields or parameters and subsequently executed in the context of other users' browsers. This behavior aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities and represents a fundamental failure in secure input handling practices.
The operational impact of CVE-2023-1884 extends beyond simple data theft or defacement. Attackers can exploit this vulnerability to hijack user sessions, steal sensitive information, manipulate data within the application, or redirect users to malicious sites. The generic nature of the vulnerability suggests it affects multiple input points within the phpMyFAQ application rather than being isolated to a single endpoint. This broad scope increases the attack surface and makes the vulnerability particularly dangerous for organizations relying on this knowledge management system for sensitive information storage and retrieval. The vulnerability can be leveraged as a stepping stone for more sophisticated attacks, potentially leading to complete system compromise or data breaches.
Organizations utilizing affected versions of thorsten/phpmyfaq should prioritize immediate remediation by upgrading to version 3.1.12 or later, which contains the necessary patches to address the XSS vulnerability. Additionally, implementing proper input validation and output encoding mechanisms should be enforced throughout the application's codebase, following secure coding practices that align with OWASP Top Ten recommendations. Network monitoring should be enhanced to detect suspicious script injection attempts, and regular security assessments should be conducted to identify similar vulnerabilities. The ATT&CK framework categorizes this vulnerability under the T1566.001 technique for 'Phishing with Social Engineering', as attackers can use XSS to create convincing phishing pages that appear legitimate to end users. Organizations should also consider implementing Content Security Policy headers as an additional defense-in-depth measure to mitigate the impact of potential XSS exploitation attempts.