Name: CVE-2021-24927: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2021-11-29T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-24927, CWE-79, CVSS 5.4, EPSS 0.0062

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

CVSS Details

CVSS 3.1 Base Score: 5.4
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
My Calendar Plugin	—	Update my-calendar plugin to version 3.2.18, or a newer patched version	May 15, 2025	Nov 1, 2021

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CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence