WordPress Plugin My Calendar is prone to multiple vulnerabilities, including cross-site scripting and arbitrary file override vulnerabilities because it fails to properly sanitize user-supplied input. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, to steal cookie-based authentication credentials or to override arbitrary files the webserver user has access to. WordPress Plugin My Calendar version 2.3.29 is vulnerable; prior versions may also be affected.


Update to plugin version 2.3.30 or latest


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