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Easy PHP Calendar Add New Event HTML Injection Vulnerability

Easy PHP Calendar is prone to an HTML-injection vulnerability because the application fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would run in the context of the affected browser, potentially allowing the attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user. Other attacks are also possible.

Easy PHP Calendar 6.3.25 is vulnerable; other versions may also be affected.