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CVE-2021-24927 The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup…

Description

The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue

Affected products and versions

Product Affected versions Fixed in
My Calendar 3.2 earliest → < 3.2.18 3.2.18
The 2 CVEs of My Calendar →
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