High · published January 8, 2026
⚡ A sneaky flaw in Salvo before version 0.88.1 could allow reflected XSS simply by accessing a specific folder! 🌐 Think of a web server as a restaurant menu — if the chef serves up uncensored dishes just because a customer asked for them, things can get messy. Here, the current path is like an unfiltered order that gets tossed right onto the plate without a second thought! An attacker could exploit this vulnerability to inject malicious scripts into the HTML output, potentially gaining unauthorized access to users' sessions or sensitive information. Imagine a diner unwittingly consuming a dish laced with harmful ingredients — users' data could be at serious risk!
Think of a web server as a restaurant menu — if the chef serves up uncensored dishes just because a customer asked for them, things can get messy. Here, the current path is like an unfiltered order that gets tossed right onto the plate without a second thought! This vulnerability arises from insufficient sanitation in the list_html function of Salvo, allowing reflected XSS if the request path is crafted correctly. The path is decoded and normalized, but then inserted into the HTML raw, creating a perfect opportunity for attackers.
An attacker could exploit this vulnerability to inject malicious scripts into the HTML output, potentially gaining unauthorized access to users' sessions or sensitive information. Imagine a diner unwittingly consuming a dish laced with harmful ingredients — users' data could be at serious risk! Upgrade to Salvo version 0.88.1 or later to patch this vulnerability. Additionally, ensure proper input validation and sanitation for any user-supplied data before rendering it in HTML. You've got this! With a quick update, you can keep your users safe and secure. 🛡️