CVE-2023-5320: XSS in phpMyAdmin FAQ

The impact of this XSS vulnerability is significant. An attacker could inject malicious JavaScript code that executes in the context of a user's browser when they visit a vulnerable page. This could allow the attacker to steal session cookies, redirect users to phishing sites, or deface the website. Given the widespread use of phpMyAdmin FAQ for documentation and support, a successful exploitation could impact a large number of users and systems. The DOM-based nature of the XSS means that the vulnerability may be difficult to detect using traditional input validation techniques, increasing the risk of exploitation.

1. Reserved2023-09-30
2. Published2023-09-30
3. Modified2024-09-23
4. EPSS updated2026-04-02

The primary mitigation for CVE-2023-5320 is to upgrade phpMyAdmin FAQ to version 3.1.18 or later. If upgrading immediately is not possible, consider implementing a Web Application Firewall (WAF) rule to filter potentially malicious input. Specifically, look for patterns associated with JavaScript injection attempts. Review and sanitize any user-supplied data that is rendered in the application. After upgrading, confirm the fix by attempting to inject a simple JavaScript payload into a vulnerable input field and verifying that it is not executed.