Отправить #885228: Piwigo 16.3.0 Cross Site Scripting

Piwigo 16.3.0 (https://github.com/Piwigo/Piwigo) contains a reflected cross-site scripting vulnerability on public authentication-related pages such as identification.php, register.php, and password.php. The application reads the user-controlled lang cookie, and if the value is invalid, it embeds that cookie value directly into a fatal error HTML response without proper output encoding. As a result, attacker-controlled HTML or JavaScript in the lang cookie is reflected into the response body and executed in the victim browser. The issue is cookie-based rather than URL-only: exploitation requires the attacker to make the victim browser send a malicious lang cookie for the target origin. No authentication is required to reach the vulnerable pages.

• Источник: ⚠️ https://github.com/Leousum/VulnPoC/blob/main/Piwigo%2016.3.0/reflected_XSS.md
• Пользователь: Leousum (UID 37212)
• Представление: 10.07.2026 11:51 (1 месяц назад)
• Модерация: 23.08.2026 18:57 (1 month later)
• Статус: принято
• Запись VulDB: 394569 [Piwigo 16.3.0 Public Authentication Page lang межсайтовый скриптинг]
• Баллы: 20